5e1d3efaabff8d2c4bf429477b644ca530e64d8ccf651a6addbf45911fa5e221

Analysis

max time kernel
150s
max time network
143s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 04:55

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General

Target

2907b7fe7f8d7ec72b908c60159513ee.exe
Size

306KB
MD5

2907b7fe7f8d7ec72b908c60159513ee
SHA1

1d2fef5eeddce1f3024abf039e30a905ee63d14b
SHA256

5e1d3efaabff8d2c4bf429477b644ca530e64d8ccf651a6addbf45911fa5e221
SHA512

83a346cb6d02812093a49dc0d7e744429d4911b30284dc74dee7eb711ab41a77cb1ccc332e095db6bc8c92b6dc54e98e86829634958ddfd19b84b077308a6ef2
SSDEEP

6144:JXAUj2iFDTiGwPw+rfJohCv0rVRSPjd53Z/N87X7b3vbcfkkYqaQ/jQ:JLjpFDTiGwPNdohDSPDbELb3YMkYza

Score

7^/10

persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
748	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2216	omyf.exe

Loads dropped DLL 2 IoCs

pid	Process
2964	2907b7fe7f8d7ec72b908c60159513ee.exe
2964	2907b7fe7f8d7ec72b908c60159513ee.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2964-0-0x0000000000400000-0x000000000082E000-memory.dmp	upx
behavioral1/files/0x0030000000016d2f-14.dat	upx
behavioral1/files/0x0030000000016d2f-10.dat	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\{94926AC8-CECC-AD4E-05C4-B4AE0A3C97B3} = "C:\\Users\\Admin\\AppData\\Roaming\\Ojupak\\omyf.exe"	omyf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2964 set thread context of 748	2964	2907b7fe7f8d7ec72b908c60159513ee.exe	28

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Internet Explorer\Privacy	2907b7fe7f8d7ec72b908c60159513ee.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	2907b7fe7f8d7ec72b908c60159513ee.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe
2216	omyf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2964	2907b7fe7f8d7ec72b908c60159513ee.exe
Token: SeSecurityPrivilege	2964	2907b7fe7f8d7ec72b908c60159513ee.exe
Token: SeSecurityPrivilege	2964	2907b7fe7f8d7ec72b908c60159513ee.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 2216	2964	2907b7fe7f8d7ec72b908c60159513ee.exe	30
PID 2964 wrote to memory of 2216	2964	2907b7fe7f8d7ec72b908c60159513ee.exe	30
PID 2964 wrote to memory of 2216	2964	2907b7fe7f8d7ec72b908c60159513ee.exe	30
PID 2964 wrote to memory of 2216	2964	2907b7fe7f8d7ec72b908c60159513ee.exe	30
PID 2216 wrote to memory of 1116	2216	omyf.exe	9
PID 2216 wrote to memory of 1116	2216	omyf.exe	9
PID 2216 wrote to memory of 1116	2216	omyf.exe	9
PID 2216 wrote to memory of 1116	2216	omyf.exe	9
PID 2216 wrote to memory of 1116	2216	omyf.exe	9
PID 2216 wrote to memory of 1176	2216	omyf.exe	8
PID 2216 wrote to memory of 1176	2216	omyf.exe	8
PID 2216 wrote to memory of 1176	2216	omyf.exe	8
PID 2216 wrote to memory of 1176	2216	omyf.exe	8
PID 2216 wrote to memory of 1176	2216	omyf.exe	8
PID 2216 wrote to memory of 1220	2216	omyf.exe	7
PID 2216 wrote to memory of 1220	2216	omyf.exe	7
PID 2216 wrote to memory of 1220	2216	omyf.exe	7
PID 2216 wrote to memory of 1220	2216	omyf.exe	7
PID 2216 wrote to memory of 1220	2216	omyf.exe	7
PID 2216 wrote to memory of 1668	2216	omyf.exe	5
PID 2216 wrote to memory of 1668	2216	omyf.exe	5
PID 2216 wrote to memory of 1668	2216	omyf.exe	5
PID 2216 wrote to memory of 1668	2216	omyf.exe	5
PID 2216 wrote to memory of 1668	2216	omyf.exe	5
PID 2216 wrote to memory of 2964	2216	omyf.exe	1
PID 2216 wrote to memory of 2964	2216	omyf.exe	1
PID 2216 wrote to memory of 2964	2216	omyf.exe	1
PID 2216 wrote to memory of 2964	2216	omyf.exe	1
PID 2216 wrote to memory of 2964	2216	omyf.exe	1
PID 2964 wrote to memory of 748	2964	2907b7fe7f8d7ec72b908c60159513ee.exe	28
PID 2964 wrote to memory of 748	2964	2907b7fe7f8d7ec72b908c60159513ee.exe	28
PID 2964 wrote to memory of 748	2964	2907b7fe7f8d7ec72b908c60159513ee.exe	28
PID 2964 wrote to memory of 748	2964	2907b7fe7f8d7ec72b908c60159513ee.exe	28
PID 2964 wrote to memory of 748	2964	2907b7fe7f8d7ec72b908c60159513ee.exe	28
PID 2964 wrote to memory of 748	2964	2907b7fe7f8d7ec72b908c60159513ee.exe	28
PID 2964 wrote to memory of 748	2964	2907b7fe7f8d7ec72b908c60159513ee.exe	28
PID 2964 wrote to memory of 748	2964	2907b7fe7f8d7ec72b908c60159513ee.exe	28
PID 2964 wrote to memory of 748	2964	2907b7fe7f8d7ec72b908c60159513ee.exe	28

C:\Users\Admin\AppData\Local\Temp\2907b7fe7f8d7ec72b908c60159513ee.exe
"C:\Users\Admin\AppData\Local\Temp\2907b7fe7f8d7ec72b908c60159513ee.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpb2372023.bat"
  2⤵
  - Deletes itself
  PID:748
- C:\Users\Admin\AppData\Roaming\Ojupak\omyf.exe
  "C:\Users\Admin\AppData\Roaming\Ojupak\omyf.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2216

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1668

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1220

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1176

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1116

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Ojupak\omyf.exe

Filesize
306KB

MD5
31463319e88c8fb82805f7a242f54564

SHA1
7167b60328b706040d8eb66a9c394928f407c9ab

SHA256
64a12614d92d3e8a2b04dbd8ca8ff8da8fcb6e04d24d515f6c5ceb15631c6e7a

SHA512
f2ec92013547b434a942dd42f41eeedee2a3a56f225589fac0541c43efc1bf437908f39c48509f37bca7616f21298988327948bfad984d61fe0d72781daee219

Download Submit
memory/748-167-0x0000000077730000-0x0000000077731000-memory.dmp

Filesize
4KB

Download
memory/748-259-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/748-162-0x0000000000050000-0x000000000008D000-memory.dmp

Filesize
244KB

Download
memory/748-262-0x0000000000050000-0x000000000008D000-memory.dmp

Filesize
244KB

Download
memory/1116-17-0x0000000001B90000-0x0000000001BCD000-memory.dmp

Filesize
244KB

Download
memory/1116-15-0x0000000001B90000-0x0000000001BCD000-memory.dmp

Filesize
244KB

Download
memory/1116-18-0x0000000001B90000-0x0000000001BCD000-memory.dmp

Filesize
244KB

Download
memory/1116-20-0x0000000001B90000-0x0000000001BCD000-memory.dmp

Filesize
244KB

Download
memory/1116-21-0x0000000001B90000-0x0000000001BCD000-memory.dmp

Filesize
244KB

Download
memory/1176-30-0x00000000001A0000-0x00000000001DD000-memory.dmp

Filesize
244KB

Download
memory/1176-28-0x00000000001A0000-0x00000000001DD000-memory.dmp

Filesize
244KB

Download
memory/1176-24-0x00000000001A0000-0x00000000001DD000-memory.dmp

Filesize
244KB

Download
memory/1176-26-0x00000000001A0000-0x00000000001DD000-memory.dmp

Filesize
244KB

Download
memory/1220-33-0x0000000002AC0000-0x0000000002AFD000-memory.dmp

Filesize
244KB

Download
memory/1220-34-0x0000000002AC0000-0x0000000002AFD000-memory.dmp

Filesize
244KB

Download
memory/1220-35-0x0000000002AC0000-0x0000000002AFD000-memory.dmp

Filesize
244KB

Download
memory/1220-36-0x0000000002AC0000-0x0000000002AFD000-memory.dmp

Filesize
244KB

Download
memory/1668-41-0x0000000000270000-0x00000000002AD000-memory.dmp

Filesize
244KB

Download
memory/1668-39-0x0000000000270000-0x00000000002AD000-memory.dmp

Filesize
244KB

Download
memory/1668-42-0x0000000000270000-0x00000000002AD000-memory.dmp

Filesize
244KB

Download
memory/1668-40-0x0000000000270000-0x00000000002AD000-memory.dmp

Filesize
244KB

Download
memory/2216-19-0x0000000000400000-0x000000000082E000-memory.dmp

Filesize
4.2MB

Download
memory/2216-263-0x0000000000400000-0x000000000082E000-memory.dmp

Filesize
4.2MB

Download
memory/2964-78-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-161-0x0000000000300000-0x000000000033D000-memory.dmp

Filesize
244KB

Download
memory/2964-64-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-66-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-60-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-58-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-56-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-54-0x0000000077730000-0x0000000077731000-memory.dmp

Filesize
4KB

Download
memory/2964-49-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-48-0x0000000000300000-0x000000000033D000-memory.dmp

Filesize
244KB

Download
memory/2964-46-0x0000000000300000-0x000000000033D000-memory.dmp

Filesize
244KB

Download
memory/2964-45-0x0000000000300000-0x000000000033D000-memory.dmp

Filesize
244KB

Download
memory/2964-44-0x0000000000300000-0x000000000033D000-memory.dmp

Filesize
244KB

Download
memory/2964-68-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-70-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-72-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-74-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-62-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-159-0x0000000000400000-0x000000000082E000-memory.dmp

Filesize
4.2MB

Download
memory/2964-76-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-0-0x0000000000400000-0x000000000082E000-memory.dmp

Filesize
4.2MB

Download
memory/2964-146-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-80-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-82-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-52-0x0000000077730000-0x0000000077731000-memory.dmp

Filesize
4KB

Download
memory/2964-53-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2964-50-0x0000000000300000-0x000000000033D000-memory.dmp

Filesize
244KB

Download
memory/2964-16-0x0000000002820000-0x0000000002C4E000-memory.dmp

Filesize
4.2MB

Download
memory/2964-47-0x0000000000300000-0x000000000033D000-memory.dmp

Filesize
244KB

Download
memory/2964-5-0x0000000000400000-0x000000000082E000-memory.dmp

Filesize
4.2MB

Download
memory/2964-13-0x0000000002820000-0x0000000002C4E000-memory.dmp

Filesize
4.2MB

Download
memory/2964-2-0x0000000000400000-0x000000000082E000-memory.dmp

Filesize
4.2MB

Download
memory/2964-1-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download