c1a5f287b9a35a1d3ec5c9488557f30936c3548a92751133c58797cc15661497

Analysis

max time kernel
161s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24/12/2023, 21:10

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General

Target

126e53b9def478f77aa4d37f79c7c1c9.exe
Size

38KB
MD5

126e53b9def478f77aa4d37f79c7c1c9
SHA1

039626c132cb9fca3144e1bdede4149f06811204
SHA256

c1a5f287b9a35a1d3ec5c9488557f30936c3548a92751133c58797cc15661497
SHA512

88da7de5b77e3107300de9ce22857b192550b47f6baf64aa0036b645393a1ed0e8bba6ce83e4935e5a588a9e26c2087f6d72a108f73274deaf6612e05d3bdd23
SSDEEP

768:w3vOvlCWW6VgEDCVD+UedClj6mQLHi7dz2dxfNVtIVRBS:QvZaJu3eUC62dzVuVRBS

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2772	E.exe
2808	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\mslg.blf	svchost.exe
File opened for modification	C:\Windows\SysWOW64\mslg.blf	svchost.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.exe	E.exe
File created	C:\Windows\svchost.exe	E.exe
File opened for modification	C:\Windows\svchost.exe	svchost.exe
File created	C:\Windows\svchost.exe	svchost.exe

Checks processor information in registry 2 TTPs 4 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	E.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	E.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2808	svchost.exe

Suspicious use of AdjustPrivilegeToken 52 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2772	E.exe
Token: SeSecurityPrivilege	2772	E.exe
Token: SeTakeOwnershipPrivilege	2772	E.exe
Token: SeLoadDriverPrivilege	2772	E.exe
Token: SeSystemProfilePrivilege	2772	E.exe
Token: SeSystemtimePrivilege	2772	E.exe
Token: SeProfSingleProcessPrivilege	2772	E.exe
Token: SeIncBasePriorityPrivilege	2772	E.exe
Token: SeCreatePagefilePrivilege	2772	E.exe
Token: SeBackupPrivilege	2772	E.exe
Token: SeRestorePrivilege	2772	E.exe
Token: SeShutdownPrivilege	2772	E.exe
Token: SeDebugPrivilege	2772	E.exe
Token: SeSystemEnvironmentPrivilege	2772	E.exe
Token: SeRemoteShutdownPrivilege	2772	E.exe
Token: SeUndockPrivilege	2772	E.exe
Token: SeManageVolumePrivilege	2772	E.exe
Token: 33	2772	E.exe
Token: 34	2772	E.exe
Token: 35	2772	E.exe
Token: SeIncreaseQuotaPrivilege	2808	svchost.exe
Token: SeSecurityPrivilege	2808	svchost.exe
Token: SeTakeOwnershipPrivilege	2808	svchost.exe
Token: SeLoadDriverPrivilege	2808	svchost.exe
Token: SeSystemProfilePrivilege	2808	svchost.exe
Token: SeSystemtimePrivilege	2808	svchost.exe
Token: SeProfSingleProcessPrivilege	2808	svchost.exe
Token: SeIncBasePriorityPrivilege	2808	svchost.exe
Token: SeCreatePagefilePrivilege	2808	svchost.exe
Token: SeBackupPrivilege	2808	svchost.exe
Token: SeRestorePrivilege	2808	svchost.exe
Token: SeShutdownPrivilege	2808	svchost.exe
Token: SeDebugPrivilege	2808	svchost.exe
Token: SeSystemEnvironmentPrivilege	2808	svchost.exe
Token: SeRemoteShutdownPrivilege	2808	svchost.exe
Token: SeUndockPrivilege	2808	svchost.exe
Token: SeManageVolumePrivilege	2808	svchost.exe
Token: 33	2808	svchost.exe
Token: 34	2808	svchost.exe
Token: 35	2808	svchost.exe
Token: 33	2808	svchost.exe
Token: SeIncBasePriorityPrivilege	2808	svchost.exe
Token: 33	2808	svchost.exe
Token: SeIncBasePriorityPrivilege	2808	svchost.exe
Token: 33	2808	svchost.exe
Token: SeIncBasePriorityPrivilege	2808	svchost.exe
Token: 33	2808	svchost.exe
Token: SeIncBasePriorityPrivilege	2808	svchost.exe
Token: 33	2808	svchost.exe
Token: SeIncBasePriorityPrivilege	2808	svchost.exe
Token: 33	2808	svchost.exe
Token: SeIncBasePriorityPrivilege	2808	svchost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2740 wrote to memory of 2772	2740	126e53b9def478f77aa4d37f79c7c1c9.exe	30
PID 2740 wrote to memory of 2772	2740	126e53b9def478f77aa4d37f79c7c1c9.exe	30
PID 2740 wrote to memory of 2772	2740	126e53b9def478f77aa4d37f79c7c1c9.exe	30
PID 2740 wrote to memory of 2772	2740	126e53b9def478f77aa4d37f79c7c1c9.exe	30
PID 2772 wrote to memory of 2808	2772	E.exe	31
PID 2772 wrote to memory of 2808	2772	E.exe	31
PID 2772 wrote to memory of 2808	2772	E.exe	31
PID 2772 wrote to memory of 2808	2772	E.exe	31
PID 2772 wrote to memory of 2692	2772	E.exe	33
PID 2772 wrote to memory of 2692	2772	E.exe	33
PID 2772 wrote to memory of 2692	2772	E.exe	33
PID 2772 wrote to memory of 2692	2772	E.exe	33

C:\Users\Admin\AppData\Local\Temp\126e53b9def478f77aa4d37f79c7c1c9.exe
"C:\Users\Admin\AppData\Local\Temp\126e53b9def478f77aa4d37f79c7c1c9.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2740
- C:\E.exe
  "\E.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Checks processor information in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2772
- - C:\Windows\svchost.exe
    C:\Windows\svchost.exe
    3⤵
    - Executes dropped EXE
    - Drops file in System32 directory
    - Drops file in Windows directory
    - Checks processor information in registry
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:2808
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\#3#.bat
    3⤵
    PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\E.exe

Filesize
67KB

MD5
50139bfb82523a6726e07ebc019306d3

SHA1
825074995d3e532b3786acf21b7d044cda21140c

SHA256
f64a28136781a67cc6708f828d1db90b3e9fb10e7a4984e23eefadfbf908432e

SHA512
9093e79f7d0def5bb2d016ce504efae4e5a7262a5ca6ef5b7861b1a60d226a02b77f46e042cee8dffd506376026a8c48025487a5b1ca9451ff4168c90bd1eafa

Download Submit
C:\Users\Admin\AppData\Local\Temp\#3#.bat

Filesize
56B

MD5
4b6438a7762f1688e88d9bbf770f2c66

SHA1
a083bee7ee1b0b7e1e72064142947c6c1010972b

SHA256
168f5f530d8f1abc9e1f1bc7510022361ae0115c0c2af3d5adebc4efc58f480a

SHA512
c28811248f93d7c1d80586945f695cb649ee0f86cdc46d8f66e9c15f3d0627cabd896941fd1da59dbb4a9c9e91839d0115d506b75cdde3c7205474c829193b9b

Download Submit
memory/2740-9-0x0000000000320000-0x000000000033A000-memory.dmp

Filesize
104KB

Download
memory/2740-5-0x0000000000320000-0x000000000033A000-memory.dmp

Filesize
104KB

Download
memory/2740-35-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2772-25-0x0000000000220000-0x000000000023A000-memory.dmp

Filesize
104KB

Download
memory/2772-27-0x0000000000400000-0x0000000000419600-memory.dmp

Filesize
101KB

Download
memory/2772-28-0x0000000000220000-0x000000000023A000-memory.dmp

Filesize
104KB

Download
memory/2772-7-0x0000000000400000-0x0000000000419600-memory.dmp

Filesize
101KB

Download
memory/2808-29-0x0000000000400000-0x0000000000419600-memory.dmp

Filesize
101KB

Download
memory/2808-37-0x0000000000400000-0x0000000000419600-memory.dmp

Filesize
101KB

Download
memory/2808-39-0x0000000000400000-0x0000000000419600-memory.dmp

Filesize
101KB

Download
memory/2808-42-0x0000000000400000-0x0000000000419600-memory.dmp

Filesize
101KB

Download
memory/2808-45-0x0000000000400000-0x0000000000419600-memory.dmp

Filesize
101KB

Download
memory/2808-48-0x0000000000400000-0x0000000000419600-memory.dmp

Filesize
101KB

Download