774cce6d84e36ac0686ecddd48aea659b701d44d24ed0b1d9e5eb1d900832d2d

Analysis

max time kernel
127s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/12/2023, 14:42

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General

Target

766ee6dc582d9b2d41a71682c0c1110b.exe
Size

260KB
MD5

766ee6dc582d9b2d41a71682c0c1110b
SHA1

e0bbf07fffe3c335379b2e2c4b8c775bd9862216
SHA256

774cce6d84e36ac0686ecddd48aea659b701d44d24ed0b1d9e5eb1d900832d2d
SHA512

117ee59dada19fb95d097103d315658b71246f2399f0c5ec5e3708363e8976af9f26349fd2400710f85f7e1bf418e452e78ae4d479f1e2c68491122e4e61e334
SSDEEP

6144:D7JyLfvkJAuZ9xqtc6sgjpCr1qT612UEqYcj9ZsaBSEV:D7wfvcAu5qJKETqnY+bs47V

Score

8^/10

persistence upx

Malware Config

Signatures

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\porting\Parameters\ServiceDll = "C:\\Windows\\system32\\f761832.dll"	766ee6dc582d9b2d41a71682c0c1110b.exe

Deletes itself 1 IoCs

pid	Process
2392	cmd.exe

Loads dropped DLL 6 IoCs

pid	Process
2000	766ee6dc582d9b2d41a71682c0c1110b.exe
2256	svchost.exe
2716	rundll32.exe
2716	rundll32.exe
2716	rundll32.exe
2716	rundll32.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2000-0-0x00000000009C0000-0x0000000000A6B000-memory.dmp	upx
behavioral1/memory/2000-7-0x00000000009C0000-0x0000000000A6B000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\f761832.dll	766ee6dc582d9b2d41a71682c0c1110b.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2000	766ee6dc582d9b2d41a71682c0c1110b.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2716	2256	svchost.exe	31
PID 2256 wrote to memory of 2716	2256	svchost.exe	31
PID 2256 wrote to memory of 2716	2256	svchost.exe	31
PID 2256 wrote to memory of 2716	2256	svchost.exe	31
PID 2256 wrote to memory of 2716	2256	svchost.exe	31
PID 2256 wrote to memory of 2716	2256	svchost.exe	31
PID 2256 wrote to memory of 2716	2256	svchost.exe	31
PID 2000 wrote to memory of 2392	2000	766ee6dc582d9b2d41a71682c0c1110b.exe	30
PID 2000 wrote to memory of 2392	2000	766ee6dc582d9b2d41a71682c0c1110b.exe	30
PID 2000 wrote to memory of 2392	2000	766ee6dc582d9b2d41a71682c0c1110b.exe	30
PID 2000 wrote to memory of 2392	2000	766ee6dc582d9b2d41a71682c0c1110b.exe	30

C:\Users\Admin\AppData\Local\Temp\766ee6dc582d9b2d41a71682c0c1110b.exe
"C:\Users\Admin\AppData\Local\Temp\766ee6dc582d9b2d41a71682c0c1110b.exe"
1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\766EE6~1.EXE" > nul
  2⤵
  - Deletes itself
  PID:2392

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "porting"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe c:\windows\system32\f761832.dll, Launch
  2⤵
  - Loads dropped DLL
  PID:2716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\??\c:\windows\SysWOW64\f761832.dll

Filesize
610KB

MD5
442b5ee0c448c3075c67a840e40f0d6f

SHA1
2b3d1d6ccbd33648624fb59de44af6b1f1b110c4

SHA256
0d8af34aaa04decb21b384a57e6bad784d1428a745c9be5db90f49d12f132922

SHA512
379912fa9a079cd98ccc8bbdea5d097be2cd28d99817b47653ab3c4eaf9c7496dfe2a61c0288afce576b646b2593ec1d6cbde0934262100eff314d6e7d1fb9c1

Download Submit
\Windows\SysWOW64\f761832.dll

Filesize
384KB

MD5
451af688624f13e24e710b3cb20d8f4f

SHA1
c6f4e35b2620321fe2771c9d75c43d1b76989896

SHA256
73d37344e9cd3587f51e9dcbbdfb2c79588d9cb0134af2cf2f1d9030e4b0a3d4

SHA512
105af6a3304f7e87eff78e9d9b316022c86688d40e3a52c083224421b8decd1a0ef8059e2c5c471a149ba609f7b7f487ee20573282e9ac7359f8b5da5fc5e39a

Download Submit
\Windows\SysWOW64\f761832.dll

Filesize
92KB

MD5
5ce9268e2ab8e17fea467de28aa754c1

SHA1
8179333fb17a0532e05cab63ff8e1bcf62812f49

SHA256
edd7d7f2610aa1f0842bde97234d53ecfae162c4959009eec89592840b30344a

SHA512
69ba3787ea3b3e9b8e995fb2173590d83c34d663f2e662c0710884510a009e0a47ff544f772f39bad32daf54db40df376c17ae28f5ae8014c2498407b34d2c0e

Download Submit
memory/2000-0-0x00000000009C0000-0x0000000000A6B000-memory.dmp

Filesize
684KB

Download
memory/2000-7-0x00000000009C0000-0x0000000000A6B000-memory.dmp

Filesize
684KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads