djvu | c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f

Analysis

max time kernel
153s
max time network
157s
platform
windows7_x64
resource
win7-en
submitted
09/09/2021, 11:58

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General

Target
c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
Size 792KB
Sample210909-n471asbcel
SHA256 c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f
MD5 57171a379041d8c06e0b75be89294a13
SHA1 22455d2e62d52efc7a9c6e767148e70e5f284fc3
SHA512 d61278b64158815370e3d554faf94fdf2c89134401e6963e728e60dd6dca101dc18f74dcb08e1375acd13d53c992914239a5aebbaa2f6238b1638940daec6f15
MD5 SHA1 SHA512

Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

40.5

Botnet

https://gheorghip.tumblr.com/

Attributes

profile_id
517

Signatures

Detected Djvu ransomeware 7 IoCs

resource	yara_rule
behavioral1/memory/1724-53-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1724-54-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1060-56-0x0000000003CF0000-0x0000000003E0B000-memory.dmp	family_djvu
behavioral1/memory/1724-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/792-62-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/792-69-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/968-97-0x0000000000424141-mapping.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata

Vidar Stealer 4 IoCs

stealer

resource	yara_rule
behavioral1/memory/316-75-0x0000000000400000-0x00000000004D5000-memory.dmp	family_vidar
behavioral1/memory/316-76-0x000000000049EC7D-mapping.dmp	family_vidar
behavioral1/memory/316-80-0x0000000000400000-0x00000000004D5000-memory.dmp	family_vidar
behavioral1/memory/1588-79-0x0000000000220000-0x00000000002F2000-memory.dmp	family_vidar

Downloads MZ/PE file

Executes dropped EXE 4 IoCs

pid	Process
1588	build2.exe
316	build2.exe
840	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
968	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe

Loads dropped DLL 6 IoCs

pid	Process
792	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
792	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
316	build2.exe
316	build2.exe
316	build2.exe
316	build2.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
432	icacls.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\c7687bec-fde0-45e5-b47a-d21782c84cb9\\c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe\" --AutoStart"	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Looks up external IP address via web service 5 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
7	api.2ip.ua
8	api.2ip.ua
16	api.2ip.ua
30	api.2ip.ua
31	api.2ip.ua

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1060 set thread context of 1724	1060	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	28
PID 1544 set thread context of 792	1544	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	35
PID 1588 set thread context of 316	1588	build2.exe	38
PID 840 set thread context of 968	840	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	46

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	build2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	build2.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
616	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1708	taskkill.exe

Modifies system certificate store 2 TTPs 5 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 1900000001000000100000002aa1c05e2ae606f198c2c5e937c97aa2030000000100000014000000d1eb23a46d17d68fd92564c2f1f1601764d8e3491d00000001000000100000002e0d6875874a44c820912e85e964cfdb140000000100000014000000a0110a233e96f107ece2af29ef82a57fd030a4b40b00000001000000180000004300b7004f00b7004d00b7004f00b7004400b7004f00000053000000010000002600000030243022060c2b06010401b231010201050130123010060a2b0601040182373c0101030200c0090000000100000034000000303206082b0601050507030106082b0601050507030206082b0601050507030406082b0601050507030306082b060105050703080f00000001000000140000003e8e6487f8fd27d322a269a71edaac5d57811286200000000100000036040000308204323082031aa003020102020101300d06092a864886f70d0101050500307b310b3009060355040613024742311b301906035504080c1247726561746572204d616e636865737465723110300e06035504070c0753616c666f7264311a3018060355040a0c11436f6d6f646f204341204c696d697465643121301f06035504030c18414141204365727469666963617465205365727669636573301e170d3034303130313030303030305a170d3238313233313233353935395a307b310b3009060355040613024742311b301906035504080c1247726561746572204d616e636865737465723110300e06035504070c0753616c666f7264311a3018060355040a0c11436f6d6f646f204341204c696d697465643121301f06035504030c1841414120436572746966696361746520536572766963657330820122300d06092a864886f70d01010105000382010f003082010a0282010100be409df46ee1ea76871c4d45448ebe46c883069dc12afe181f8ee402faf3ab5d508a16310b9a06d0c57022cd492d5463ccb66e68460b53eacb4c24c0bc724eeaf115aef4549a120ac37ab23360e2da8955f32258f3dedccfef8386a28c944f9f68f29890468427c776bfe3cc352c8b5e07646582c048b0a891f9619f762050a891c766b5eb78620356f08a1a13ea31a31ea099fd38f6f62732586f07f56bb8fb142bafb7aaccd6635f738cda0599a838a8cb17783651ace99ef4783a8dcf0fd942e2980cab2f9f0e01deef9f9949f12ddfac744d1b98b547c5e529d1f99018c7629cbe83c7267b3e8a25c7c0dd9de6356810209d8fd8ded2c3849c0d5ee82fc90203010001a381c03081bd301d0603551d0e04160414a0110a233e96f107ece2af29ef82a57fd030a4b4300e0603551d0f0101ff040403020106300f0603551d130101ff040530030101ff307b0603551d1f047430723038a036a0348632687474703a2f2f63726c2e636f6d6f646f63612e636f6d2f414141436572746966696361746553657276696365732e63726c3036a034a0328630687474703a2f2f63726c2e636f6d6f646f2e6e65742f414141436572746966696361746553657276696365732e63726c300d06092a864886f70d010105050003820101000856fc02f09be8ffa4fad67bc64480ce4fc4c5f60058cca6b6bc1449680476e8e6ee5dec020f60d68d50184f264e01e3e6b0a5eebfbc745441bffdfc12b8c74f5af48960057f60b7054af3f6f1c2bfc4b97486b62d7d6bccd2f346dd2fc6e06ac3c334032c7d96dd5ac20ea70a99c1058bab0c2ff35c3acf6c37550987de53406c58effcb6ab656e04f61bdc3ce05a15c69ed9f15948302165036cece92173ec9b03a1e037ada015188ffaba02cea72ca910132cd4e50826ab229760f8905e74d4a29a53bdf2a968e0a26ec2d76cb1a30f9ebfeb68e756f2aef2e32b383a0981b56b85d7be2ded3f1ab7b263e2f5622c82d46a004150f139839f95e93696986e	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1724	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
1724	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
792	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
792	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
316	build2.exe
316	build2.exe
316	build2.exe
316	build2.exe
968	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
968	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1708	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1060 wrote to memory of 1724	1060	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	28
PID 1060 wrote to memory of 1724	1060	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	28
PID 1060 wrote to memory of 1724	1060	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	28
PID 1060 wrote to memory of 1724	1060	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	28
PID 1060 wrote to memory of 1724	1060	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	28
PID 1060 wrote to memory of 1724	1060	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	28
PID 1060 wrote to memory of 1724	1060	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	28
PID 1060 wrote to memory of 1724	1060	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	28
PID 1060 wrote to memory of 1724	1060	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	28
PID 1060 wrote to memory of 1724	1060	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	28
PID 1060 wrote to memory of 1724	1060	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	28
PID 1724 wrote to memory of 432	1724	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	33
PID 1724 wrote to memory of 432	1724	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	33
PID 1724 wrote to memory of 432	1724	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	33
PID 1724 wrote to memory of 432	1724	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	33
PID 1724 wrote to memory of 1544	1724	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	34
PID 1724 wrote to memory of 1544	1724	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	34
PID 1724 wrote to memory of 1544	1724	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	34
PID 1724 wrote to memory of 1544	1724	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	34
PID 1544 wrote to memory of 792	1544	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	35
PID 1544 wrote to memory of 792	1544	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	35
PID 1544 wrote to memory of 792	1544	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	35
PID 1544 wrote to memory of 792	1544	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	35
PID 1544 wrote to memory of 792	1544	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	35
PID 1544 wrote to memory of 792	1544	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	35
PID 1544 wrote to memory of 792	1544	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	35
PID 1544 wrote to memory of 792	1544	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	35
PID 1544 wrote to memory of 792	1544	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	35
PID 1544 wrote to memory of 792	1544	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	35
PID 1544 wrote to memory of 792	1544	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	35
PID 792 wrote to memory of 1588	792	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	36
PID 792 wrote to memory of 1588	792	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	36
PID 792 wrote to memory of 1588	792	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	36
PID 792 wrote to memory of 1588	792	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	36
PID 1588 wrote to memory of 316	1588	build2.exe	38
PID 1588 wrote to memory of 316	1588	build2.exe	38
PID 1588 wrote to memory of 316	1588	build2.exe	38
PID 1588 wrote to memory of 316	1588	build2.exe	38
PID 1588 wrote to memory of 316	1588	build2.exe	38
PID 1588 wrote to memory of 316	1588	build2.exe	38
PID 1588 wrote to memory of 316	1588	build2.exe	38
PID 1588 wrote to memory of 316	1588	build2.exe	38
PID 1588 wrote to memory of 316	1588	build2.exe	38
PID 316 wrote to memory of 576	316	build2.exe	40
PID 316 wrote to memory of 576	316	build2.exe	40
PID 316 wrote to memory of 576	316	build2.exe	40
PID 316 wrote to memory of 576	316	build2.exe	40
PID 576 wrote to memory of 1708	576	cmd.exe	42
PID 576 wrote to memory of 1708	576	cmd.exe	42
PID 576 wrote to memory of 1708	576	cmd.exe	42
PID 576 wrote to memory of 1708	576	cmd.exe	42
PID 576 wrote to memory of 616	576	cmd.exe	43
PID 576 wrote to memory of 616	576	cmd.exe	43
PID 576 wrote to memory of 616	576	cmd.exe	43
PID 576 wrote to memory of 616	576	cmd.exe	43
PID 960 wrote to memory of 840	960	taskeng.exe	45
PID 960 wrote to memory of 840	960	taskeng.exe	45
PID 960 wrote to memory of 840	960	taskeng.exe	45
PID 960 wrote to memory of 840	960	taskeng.exe	45
PID 840 wrote to memory of 968	840	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	46
PID 840 wrote to memory of 968	840	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	46
PID 840 wrote to memory of 968	840	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	46
PID 840 wrote to memory of 968	840	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	46
PID 840 wrote to memory of 968	840	c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe	46

C:\Users\Admin\AppData\Local\Temp\c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
"C:\Users\Admin\AppData\Local\Temp\c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1060
- C:\Users\Admin\AppData\Local\Temp\c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
  "C:\Users\Admin\AppData\Local\Temp\c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe"
  2⤵
  - Adds Run key to start application
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1724
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\c7687bec-fde0-45e5-b47a-d21782c84cb9" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:432
- - C:\Users\Admin\AppData\Local\Temp\c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
    "C:\Users\Admin\AppData\Local\Temp\c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1544
  - - C:\Users\Admin\AppData\Local\Temp\c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
      "C:\Users\Admin\AppData\Local\Temp\c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Loads dropped DLL
      Modifies system certificate store
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:792
    - - C:\Users\Admin\AppData\Local\9773c486-270b-446d-bb1a-3ce26152870b\build2.exe
        
        "C:\Users\Admin\AppData\Local\9773c486-270b-446d-bb1a-3ce26152870b\build2.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1588
      - C:\Users\Admin\AppData\Local\9773c486-270b-446d-bb1a-3ce26152870b\build2.exe
        
        "C:\Users\Admin\AppData\Local\9773c486-270b-446d-bb1a-3ce26152870b\build2.exe"
        6⤵
        Executes dropped EXE
        Loads dropped DLL
        Checks processor information in registry
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:316
        
        C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\9773c486-270b-446d-bb1a-3ce26152870b\build2.exe" & del C:\ProgramData\*.dll & exit
        7⤵
        Suspicious use of WriteProcessMemory
        
        PID:576
        
        C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im build2.exe /f
        8⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1708
        
        C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 6
        8⤵
        Delays execution with timeout.exe
        
        PID:616

C:\Windows\system32\taskeng.exe
taskeng.exe {492C6278-6F04-48B1-AAAF-D4E6C051764E} S-1-5-21-1669990088-476967504-438132596-1000:KJUCCLUP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:960
- C:\Users\Admin\AppData\Local\c7687bec-fde0-45e5-b47a-d21782c84cb9\c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
  C:\Users\Admin\AppData\Local\c7687bec-fde0-45e5-b47a-d21782c84cb9\c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe --Task
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:840
- - C:\Users\Admin\AppData\Local\c7687bec-fde0-45e5-b47a-d21782c84cb9\c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe
    C:\Users\Admin\AppData\Local\c7687bec-fde0-45e5-b47a-d21782c84cb9\c90d3fe9641d27a59510e20001bc315dc1b76972f03e910e2d71bd6cde0e983f.exe --Task
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    PID:968

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/316-75-0x0000000000400000-0x00000000004D5000-memory.dmp

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memory/316-80-0x0000000000400000-0x00000000004D5000-memory.dmp

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memory/792-69-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1060-56-0x0000000003CF0000-0x0000000003E0B000-memory.dmp

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memory/1588-79-0x0000000000220000-0x00000000002F2000-memory.dmp

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memory/1724-57-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1724-55-0x0000000076391000-0x0000000076393000-memory.dmp

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memory/1724-53-0x0000000000400000-0x0000000000537000-memory.dmp

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