5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/06/2024, 12:33

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General

Target

5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23.exe
Size

71KB
MD5

294d7cf7e47bd0d75f1965503b77588b
SHA1

ea135ed35ce28d2f732dd3f13590c92aabf67c55
SHA256

5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23
SHA512

df9a562444ab956bca30555237bb0584f98805f6445d5d8caf7acf0abe21a6c2d2348916c035ccb10ae46c04006dfa59a3f74efe3e39a83e1103f7dc3a59c877
SSDEEP

1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1Hw8sl8:Olg35GTslA5t3/w8D

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\AntiVirusOverride = "25600"	ealfocer.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	ealfocer.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	ealfocer.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	ealfocer.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\{4B584950-5043-4b46-4B58-495050434b46}	ealfocer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	ealfocer.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}\IsInstalled = "1"	ealfocer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4B584950-5043-4b46-4B58-495050434b46}\StubPath = "C:\\Windows\\system32\\ouvheaxob-eneab.exe"	ealfocer.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	ealfocer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a"	ealfocer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\ebbeahuf.exe"	ealfocer.exe

Executes dropped EXE 2 IoCs

pid	Process
2172	ealfocer.exe
2244	ealfocer.exe

Loads dropped DLL 3 IoCs

pid	Process
2008	5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23.exe
2008	5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23.exe
2172	ealfocer.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"	ealfocer.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	ealfocer.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	ealfocer.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	ealfocer.exe

Modifies WinLogon 2 TTPs 5 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

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

Drops file in System32 directory 9 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ealfocer.exe	5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23.exe
File created	C:\Windows\SysWOW64\ealfocer.exe	5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23.exe
File opened for modification	C:\Windows\SysWOW64\ebbeahuf.exe	ealfocer.exe
File opened for modification	C:\Windows\SysWOW64\ouvheaxob-eneab.exe	ealfocer.exe
File created	C:\Windows\SysWOW64\edtoaxem-ecur.dll	ealfocer.exe
File created	C:\Windows\SysWOW64\ebbeahuf.exe	ealfocer.exe
File created	C:\Windows\SysWOW64\ouvheaxob-eneab.exe	ealfocer.exe
File opened for modification	C:\Windows\SysWOW64\edtoaxem-ecur.dll	ealfocer.exe
File opened for modification	C:\Windows\SysWOW64\ealfocer.exe	ealfocer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2244	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe
2172	ealfocer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2008	5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23.exe
Token: SeDebugPrivilege	2172	ealfocer.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 2172	2008	5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23.exe	28
PID 2008 wrote to memory of 2172	2008	5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23.exe	28
PID 2008 wrote to memory of 2172	2008	5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23.exe	28
PID 2008 wrote to memory of 2172	2008	5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23.exe	28
PID 2172 wrote to memory of 412	2172	ealfocer.exe	5
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 2244	2172	ealfocer.exe	29
PID 2172 wrote to memory of 2244	2172	ealfocer.exe	29
PID 2172 wrote to memory of 2244	2172	ealfocer.exe	29
PID 2172 wrote to memory of 2244	2172	ealfocer.exe	29
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21
PID 2172 wrote to memory of 1368	2172	ealfocer.exe	21

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:412

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1368
- C:\Users\Admin\AppData\Local\Temp\5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23.exe
  "C:\Users\Admin\AppData\Local\Temp\5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2008
- - C:\Windows\SysWOW64\ealfocer.exe
    "C:\Windows\system32\ealfocer.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:2172
  - - C:\Windows\SysWOW64\ealfocer.exe
      --k33p
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:2244

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\ebbeahuf.exe

Filesize
74KB

MD5
ca2601dc61a063766d569750865e9f4c

SHA1
7b4d13184d70439256cbbfa7dec445d6263d1875

SHA256
ff476ef763fac43d545a79e555c8289382e71b309d77c67ce29049127a3fe94f

SHA512
e24f3895399b9dae25fc08554b573863608d1eeaf05b964f6f48f74c9e6fffadf794e76c4da4d263ee88db8df9057c56b3f673f57e5c8e7214751704074bed37

Download Submit
C:\Windows\SysWOW64\edtoaxem-ecur.dll

Filesize
5KB

MD5
f37b21c00fd81bd93c89ce741a88f183

SHA1
b2796500597c68e2f5638e1101b46eaf32676c1c

SHA256
76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

SHA512
252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

Download Submit
C:\Windows\SysWOW64\ouvheaxob-eneab.exe

Filesize
73KB

MD5
c079607630d6223eb9100956b3000067

SHA1
ab87707298ef349f5a69108fe5e49b42cb3759b8

SHA256
d72fbaf95b10ace2c252cec3775d76b072698779bfac4edd9c141af5868f8ae3

SHA512
dfaefc5f96b624b3c4bf232a62799a3899400c2f8c56f0f88182cb13e3753d546a90bd337f5aa0c0f3f004d9108fa97eb7f9d9d897af1421d36c9d041c39e934

Download Submit
\Windows\SysWOW64\ealfocer.exe

Filesize
71KB

MD5
294d7cf7e47bd0d75f1965503b77588b

SHA1
ea135ed35ce28d2f732dd3f13590c92aabf67c55

SHA256
5b8998edb16a5bc481cb9708ac37dfe22d627bc3b9760c04a1208d4dc8ac0f23

SHA512
df9a562444ab956bca30555237bb0584f98805f6445d5d8caf7acf0abe21a6c2d2348916c035ccb10ae46c04006dfa59a3f74efe3e39a83e1103f7dc3a59c877

Download Submit
memory/2008-9-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2172-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2244-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download