2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb

Analysis

max time kernel
149s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
08/05/2024, 20:30

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General

Target

2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb.exe
Size

70KB
MD5

626ee665b3f382e4efd61e2465cb776c
SHA1

ba23643c0454e607d82540e2d47df6742ba5e8a1
SHA256

2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb
SHA512

9bb8a79dcb8a45aa2e25fa07d0ee64c904986e97a8ffffac4340dd9831ea676a7d8568999f0347d9e6c4b834525dbe7d46abd18377520b3acc21dccbe7fcfed5
SSDEEP

1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1Hw81:Olg35GTslA5t3/w81

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

Windows security bypass 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	oublofuc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	oublofuc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	oublofuc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	oublofuc.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{53434647-4252-4254-5343-464742524254}	oublofuc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{53434647-4252-4254-5343-464742524254}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	oublofuc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{53434647-4252-4254-5343-464742524254}\IsInstalled = "1"	oublofuc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{53434647-4252-4254-5343-464742524254}\StubPath = "C:\\Windows\\system32\\akfoateam-acat.exe"	oublofuc.exe

Sets file execution options in registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe	oublofuc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a"	oublofuc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\kgeafuf.exe"	oublofuc.exe

Executes dropped EXE 2 IoCs

pid	Process
2312	oublofuc.exe
1992	oublofuc.exe

Loads dropped DLL 3 IoCs

pid	Process
1072	2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb.exe
1072	2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb.exe
2312	oublofuc.exe

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	oublofuc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	oublofuc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	oublofuc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	oublofuc.exe

Modifies WinLogon 2 TTPs 5 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}	oublofuc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	oublofuc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a"	oublofuc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\gduceb.dll"	oublofuc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup"	oublofuc.exe

Drops file in System32 directory 9 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\oublofuc.exe	oublofuc.exe
File opened for modification	C:\Windows\SysWOW64\oublofuc.exe	2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb.exe
File opened for modification	C:\Windows\SysWOW64\kgeafuf.exe	oublofuc.exe
File opened for modification	C:\Windows\SysWOW64\akfoateam-acat.exe	oublofuc.exe
File created	C:\Windows\SysWOW64\akfoateam-acat.exe	oublofuc.exe
File created	C:\Windows\SysWOW64\gduceb.dll	oublofuc.exe
File created	C:\Windows\SysWOW64\oublofuc.exe	2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb.exe
File created	C:\Windows\SysWOW64\kgeafuf.exe	oublofuc.exe
File opened for modification	C:\Windows\SysWOW64\gduceb.dll	oublofuc.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
1992	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe
2312	oublofuc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1072	2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb.exe
Token: SeDebugPrivilege	2312	oublofuc.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 2312	1072	2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb.exe	28
PID 1072 wrote to memory of 2312	1072	2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb.exe	28
PID 1072 wrote to memory of 2312	1072	2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb.exe	28
PID 1072 wrote to memory of 2312	1072	2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb.exe	28
PID 2312 wrote to memory of 1992	2312	oublofuc.exe	29
PID 2312 wrote to memory of 1992	2312	oublofuc.exe	29
PID 2312 wrote to memory of 1992	2312	oublofuc.exe	29
PID 2312 wrote to memory of 1992	2312	oublofuc.exe	29
PID 2312 wrote to memory of 436	2312	oublofuc.exe	5
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21
PID 2312 wrote to memory of 1368	2312	oublofuc.exe	21

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:436

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1368
- C:\Users\Admin\AppData\Local\Temp\2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb.exe
  "C:\Users\Admin\AppData\Local\Temp\2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1072
- - C:\Windows\SysWOW64\oublofuc.exe
    "C:\Windows\system32\oublofuc.exe"
    3⤵
    - Windows security bypass
    - Modifies Installed Components in the registry
    - Sets file execution options in registry
    - Executes dropped EXE
    - Loads dropped DLL
    - Windows security modification
    - Modifies WinLogon
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2312
  - - C:\Windows\SysWOW64\oublofuc.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:1992

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

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\akfoateam-acat.exe

Filesize
72KB

MD5
2d2b8b20f6f596c3190b9447c6d25d71

SHA1
3125a496c4749ad462e448f0a4d30b1d4b9b8064

SHA256
c052a647d892ec304a64d7101139185567741aceaf1311be19e2bfe9652ff841

SHA512
a89b459555aa80f9ae6a0c2a582665c1033fcfde7a5a88deeddb2bbca3bcbe80ae254f3aa0b66c4151e9b8eba0ca52ea51feb430466dc9d57c5c3176f51ad225

Download Submit
C:\Windows\SysWOW64\gduceb.dll

Filesize
5KB

MD5
f37b21c00fd81bd93c89ce741a88f183

SHA1
b2796500597c68e2f5638e1101b46eaf32676c1c

SHA256
76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

SHA512
252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

Download Submit
C:\Windows\SysWOW64\kgeafuf.exe

Filesize
73KB

MD5
6854fb345e5ef59033c49253998f8e74

SHA1
e51f5ea964ef37bf9b66c8c32153a7df7360d6e1

SHA256
283b9aaf3f88c6a2d10c0e9f5ba23f550114c617c70c090b2c965e6b14c8e014

SHA512
ca754c962786f91e075ee77f2db691d73984a99b9d954445aef9a597c914b16e7d687b5cdc74b1454e1f7344c7282b445f548ae4e48de04338a39e15fe81fb78

Download Submit
\Windows\SysWOW64\oublofuc.exe

Filesize
70KB

MD5
626ee665b3f382e4efd61e2465cb776c

SHA1
ba23643c0454e607d82540e2d47df6742ba5e8a1

SHA256
2742e3f12530a1864b0fae4c65978db6af3c0de741d4203ea4c7afd9d37af4bb

SHA512
9bb8a79dcb8a45aa2e25fa07d0ee64c904986e97a8ffffac4340dd9831ea676a7d8568999f0347d9e6c4b834525dbe7d46abd18377520b3acc21dccbe7fcfed5

Download Submit
memory/1072-9-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1992-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2312-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download