4235c78ffaf12c4e584666da54cfc5dc56412235f5a2d313dcac07d1314dd52e

Analysis

max time kernel
126s
max time network
127s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 10:27

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General

Target

Opdxdyeul.exe
Size

894KB
MD5

cee58644e824d57927fe73be837b1418
SHA1

698d1a11ab58852be004fd4668a6f25371621976
SHA256

4235c78ffaf12c4e584666da54cfc5dc56412235f5a2d313dcac07d1314dd52e
SHA512

ab9e9083ed107b5600f802ec66dab71f1064377749b6c874f8ce6e9ce5b2718a1dc45372b883943a8eae99378d1151ce15983d4c9be67d559cd72b28b9f55fb5
SSDEEP

12288:etFDEnlFaqLcsjwwdbriOXrWh+7SmCHK4A04KJeYtS1dFXuehyFJ97wQjGuNafNJ:6q9ctmHiCpd4FJe0oeehyjPiuNv/L

Score

7^/10

discovery persistence

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
5748	tshg.exe
5576	tshg.exe
5996	tshg.exe
5664	tshg.exe

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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\Yjlwuuys = "C:\\Users\\Admin\\AppData\\Roaming\\Yjlwuuys.exe"	Opdxdyeul.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2692 set thread context of 5504	2692	Opdxdyeul.exe	33
PID 5748 set thread context of 5576	5748	tshg.exe	36
PID 5996 set thread context of 5664	5996	tshg.exe	39

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\Test Task17.job	Opdxdyeul.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Opdxdyeul.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Opdxdyeul.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tshg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tshg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tshg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tshg.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
5372	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	Opdxdyeul.exe
Token: SeDebugPrivilege	5372	powershell.exe
Token: SeDebugPrivilege	2692	Opdxdyeul.exe
Token: SeDebugPrivilege	5748	tshg.exe
Token: SeDebugPrivilege	5748	tshg.exe
Token: SeDebugPrivilege	5996	tshg.exe
Token: SeDebugPrivilege	5996	tshg.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 5372	2692	Opdxdyeul.exe	31
PID 2692 wrote to memory of 5372	2692	Opdxdyeul.exe	31
PID 2692 wrote to memory of 5372	2692	Opdxdyeul.exe	31
PID 2692 wrote to memory of 5372	2692	Opdxdyeul.exe	31
PID 2692 wrote to memory of 5504	2692	Opdxdyeul.exe	33
PID 2692 wrote to memory of 5504	2692	Opdxdyeul.exe	33
PID 2692 wrote to memory of 5504	2692	Opdxdyeul.exe	33
PID 2692 wrote to memory of 5504	2692	Opdxdyeul.exe	33
PID 2692 wrote to memory of 5504	2692	Opdxdyeul.exe	33
PID 2692 wrote to memory of 5504	2692	Opdxdyeul.exe	33
PID 2692 wrote to memory of 5504	2692	Opdxdyeul.exe	33
PID 2692 wrote to memory of 5504	2692	Opdxdyeul.exe	33
PID 2692 wrote to memory of 5504	2692	Opdxdyeul.exe	33
PID 5716 wrote to memory of 5748	5716	taskeng.exe	35
PID 5716 wrote to memory of 5748	5716	taskeng.exe	35
PID 5716 wrote to memory of 5748	5716	taskeng.exe	35
PID 5716 wrote to memory of 5748	5716	taskeng.exe	35
PID 5748 wrote to memory of 5576	5748	tshg.exe	36
PID 5748 wrote to memory of 5576	5748	tshg.exe	36
PID 5748 wrote to memory of 5576	5748	tshg.exe	36
PID 5748 wrote to memory of 5576	5748	tshg.exe	36
PID 5748 wrote to memory of 5576	5748	tshg.exe	36
PID 5748 wrote to memory of 5576	5748	tshg.exe	36
PID 5748 wrote to memory of 5576	5748	tshg.exe	36
PID 5748 wrote to memory of 5576	5748	tshg.exe	36
PID 5748 wrote to memory of 5576	5748	tshg.exe	36
PID 5716 wrote to memory of 5996	5716	taskeng.exe	38
PID 5716 wrote to memory of 5996	5716	taskeng.exe	38
PID 5716 wrote to memory of 5996	5716	taskeng.exe	38
PID 5716 wrote to memory of 5996	5716	taskeng.exe	38
PID 5996 wrote to memory of 5664	5996	tshg.exe	39
PID 5996 wrote to memory of 5664	5996	tshg.exe	39
PID 5996 wrote to memory of 5664	5996	tshg.exe	39
PID 5996 wrote to memory of 5664	5996	tshg.exe	39
PID 5996 wrote to memory of 5664	5996	tshg.exe	39
PID 5996 wrote to memory of 5664	5996	tshg.exe	39
PID 5996 wrote to memory of 5664	5996	tshg.exe	39
PID 5996 wrote to memory of 5664	5996	tshg.exe	39
PID 5996 wrote to memory of 5664	5996	tshg.exe	39

C:\Users\Admin\AppData\Local\Temp\Opdxdyeul.exe
"C:\Users\Admin\AppData\Local\Temp\Opdxdyeul.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc 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
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5372
- C:\Users\Admin\AppData\Local\Temp\Opdxdyeul.exe
  "C:\Users\Admin\AppData\Local\Temp\Opdxdyeul.exe"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:5504

C:\Windows\system32\taskeng.exe
taskeng.exe {B47258B2-097E-406C-ABBD-BCF5E8FCC090} S-1-5-21-312935884-697965778-3955649944-1000:MXQFNXLT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:5716
- C:\ProgramData\kgfxd\tshg.exe
  C:\ProgramData\kgfxd\tshg.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5748
- - C:\ProgramData\kgfxd\tshg.exe
    "C:\ProgramData\kgfxd\tshg.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5576
- C:\ProgramData\kgfxd\tshg.exe
  C:\ProgramData\kgfxd\tshg.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5996
- - C:\ProgramData\kgfxd\tshg.exe
    "C:\ProgramData\kgfxd\tshg.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5664

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\kgfxd\tshg.exe

Filesize
894KB

MD5
cee58644e824d57927fe73be837b1418

SHA1
698d1a11ab58852be004fd4668a6f25371621976

SHA256
4235c78ffaf12c4e584666da54cfc5dc56412235f5a2d313dcac07d1314dd52e

SHA512
ab9e9083ed107b5600f802ec66dab71f1064377749b6c874f8ce6e9ce5b2718a1dc45372b883943a8eae99378d1151ce15983d4c9be67d559cd72b28b9f55fb5

Download Submit
C:\Windows\Tasks\Test Task17.job

Filesize
214B

MD5
9159275d7e4199d8848469e17896abc6

SHA1
049c020c21cabfc78c19fa5a64e3c4da80b7c536

SHA256
3d3948365b28c4084f5a15a8377b1a8eb7743e40379dd87d306d900ab56adaa9

SHA512
5c7146ca6ba696fab22d22305578a554c424617ab27f89b060848dfa17ae7e74c1fd512ab0fd68717088fbd0707ac96953faf5dc3f2a2417f0cb54f016602226

Download Submit
memory/2692-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2692-1-0x0000000000890000-0x0000000000976000-memory.dmp

Filesize
920KB

Download
memory/2692-2-0x0000000004710000-0x00000000047EA000-memory.dmp

Filesize
872KB

Download
memory/2692-3-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2692-4-0x0000000005160000-0x000000000523C000-memory.dmp

Filesize
880KB

Download
memory/2692-5-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-14-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-22-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-32-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-46-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-58-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-66-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-68-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-64-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-62-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-60-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-56-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-54-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-52-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-50-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-48-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-44-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-42-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-40-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-38-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-36-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-34-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-30-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-28-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-26-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-24-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-20-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-18-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-16-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-12-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-10-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-8-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-6-0x0000000005160000-0x0000000005236000-memory.dmp

Filesize
856KB

Download
memory/2692-1077-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2692-1078-0x0000000002120000-0x0000000002178000-memory.dmp

Filesize
352KB

Download
memory/2692-1079-0x0000000000840000-0x000000000088C000-memory.dmp

Filesize
304KB

Download
memory/2692-1080-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2692-1081-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2692-1082-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2692-1086-0x0000000004860000-0x00000000048B4000-memory.dmp

Filesize
336KB

Download
memory/2692-1101-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/5372-1085-0x0000000002BB0000-0x0000000002BF0000-memory.dmp

Filesize
256KB

Download
memory/5748-1105-0x0000000000D00000-0x0000000000DE6000-memory.dmp

Filesize
920KB

Download
memory/5996-2195-0x0000000000D00000-0x0000000000DE6000-memory.dmp

Filesize
920KB

Download