03f8de6672375e409116e694e4ca148324a9e32c6b27fb8fff68c8170540a8a9

Analysis

max time kernel
150s
max time network
138s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
07-03-2024 17:32

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General

Target

b94504dd45589f48b6db7e5a22904b98.exe
Size

363KB
MD5

b94504dd45589f48b6db7e5a22904b98
SHA1

a86474ae38c46fe0464f34b003c0cc5eae96c24c
SHA256

03f8de6672375e409116e694e4ca148324a9e32c6b27fb8fff68c8170540a8a9
SHA512

7124ea52af10be8e3bfd7c93e143cbec5096a4ce834300cde6e7f4830454d0d7043bcb9a556e65704ebfe79b847c4274aad283b6114bf016eb536d1c0e214219
SSDEEP

6144:yQqfyilArKQWwsctuEDBHlC8w9WuKc9mfhTNSBLJeQAxrs+4:y/fhlAWvwVdNdeuphkBNRArs+4

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

ygfiyp.exe

pid process

1172 ygfiyp.exe
Loads dropped DLL 1 IoCs

Processes:

b94504dd45589f48b6db7e5a22904b98.exe

pid process

2356 b94504dd45589f48b6db7e5a22904b98.exe

pid	process
2356	b94504dd45589f48b6db7e5a22904b98.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ygfiyp.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\{9EC938C8-8543-AD4E-DD27-CD48CA2DEE55} = "C:\\Users\\Admin\\AppData\\Roaming\\Omaqca\\ygfiyp.exe"	ygfiyp.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

b94504dd45589f48b6db7e5a22904b98.exe

description pid process target process

PID 2356 set thread context of 2036 2356 b94504dd45589f48b6db7e5a22904b98.exe cmd.exe
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

2212 2036 WerFault.exe cmd.exe
2112 2212 WerFault.exe WerFault.exe

description	pid	process	target process
PID 2356 set thread context of 2036	2356	b94504dd45589f48b6db7e5a22904b98.exe	cmd.exe

pid	pid_target	process	target process
2212	2036	WerFault.exe	cmd.exe
2112	2212	WerFault.exe	WerFault.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

b94504dd45589f48b6db7e5a22904b98.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	b94504dd45589f48b6db7e5a22904b98.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Internet Explorer\Privacy	b94504dd45589f48b6db7e5a22904b98.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

Processes:

ygfiyp.exe

pid	process
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe
1172	ygfiyp.exe

Suspicious use of UnmapMainImage 2 IoCs

Processes:

b94504dd45589f48b6db7e5a22904b98.exeygfiyp.exe

pid process

2356 b94504dd45589f48b6db7e5a22904b98.exe
1172 ygfiyp.exe

pid	process
2356	b94504dd45589f48b6db7e5a22904b98.exe
1172	ygfiyp.exe

Suspicious use of WriteProcessMemory 56 IoCs

Processes:

b94504dd45589f48b6db7e5a22904b98.exeygfiyp.execmd.exeWerFault.exe

description	pid	process	target process
PID 2356 wrote to memory of 1172	2356	b94504dd45589f48b6db7e5a22904b98.exe	ygfiyp.exe
PID 2356 wrote to memory of 1172	2356	b94504dd45589f48b6db7e5a22904b98.exe	ygfiyp.exe
PID 2356 wrote to memory of 1172	2356	b94504dd45589f48b6db7e5a22904b98.exe	ygfiyp.exe
PID 2356 wrote to memory of 1172	2356	b94504dd45589f48b6db7e5a22904b98.exe	ygfiyp.exe
PID 1172 wrote to memory of 1120	1172	ygfiyp.exe	taskhost.exe
PID 1172 wrote to memory of 1120	1172	ygfiyp.exe	taskhost.exe
PID 1172 wrote to memory of 1120	1172	ygfiyp.exe	taskhost.exe
PID 1172 wrote to memory of 1120	1172	ygfiyp.exe	taskhost.exe
PID 1172 wrote to memory of 1120	1172	ygfiyp.exe	taskhost.exe
PID 1172 wrote to memory of 1180	1172	ygfiyp.exe	Dwm.exe
PID 1172 wrote to memory of 1180	1172	ygfiyp.exe	Dwm.exe
PID 1172 wrote to memory of 1180	1172	ygfiyp.exe	Dwm.exe
PID 1172 wrote to memory of 1180	1172	ygfiyp.exe	Dwm.exe
PID 1172 wrote to memory of 1180	1172	ygfiyp.exe	Dwm.exe
PID 1172 wrote to memory of 1224	1172	ygfiyp.exe	Explorer.EXE
PID 1172 wrote to memory of 1224	1172	ygfiyp.exe	Explorer.EXE
PID 1172 wrote to memory of 1224	1172	ygfiyp.exe	Explorer.EXE
PID 1172 wrote to memory of 1224	1172	ygfiyp.exe	Explorer.EXE
PID 1172 wrote to memory of 1224	1172	ygfiyp.exe	Explorer.EXE
PID 1172 wrote to memory of 1008	1172	ygfiyp.exe	DllHost.exe
PID 1172 wrote to memory of 1008	1172	ygfiyp.exe	DllHost.exe
PID 1172 wrote to memory of 1008	1172	ygfiyp.exe	DllHost.exe
PID 1172 wrote to memory of 1008	1172	ygfiyp.exe	DllHost.exe
PID 1172 wrote to memory of 1008	1172	ygfiyp.exe	DllHost.exe
PID 1172 wrote to memory of 2356	1172	ygfiyp.exe	b94504dd45589f48b6db7e5a22904b98.exe
PID 1172 wrote to memory of 2356	1172	ygfiyp.exe	b94504dd45589f48b6db7e5a22904b98.exe
PID 1172 wrote to memory of 2356	1172	ygfiyp.exe	b94504dd45589f48b6db7e5a22904b98.exe
PID 1172 wrote to memory of 2356	1172	ygfiyp.exe	b94504dd45589f48b6db7e5a22904b98.exe
PID 1172 wrote to memory of 2356	1172	ygfiyp.exe	b94504dd45589f48b6db7e5a22904b98.exe
PID 2356 wrote to memory of 2036	2356	b94504dd45589f48b6db7e5a22904b98.exe	cmd.exe
PID 2356 wrote to memory of 2036	2356	b94504dd45589f48b6db7e5a22904b98.exe	cmd.exe
PID 2356 wrote to memory of 2036	2356	b94504dd45589f48b6db7e5a22904b98.exe	cmd.exe
PID 2356 wrote to memory of 2036	2356	b94504dd45589f48b6db7e5a22904b98.exe	cmd.exe
PID 2356 wrote to memory of 2036	2356	b94504dd45589f48b6db7e5a22904b98.exe	cmd.exe
PID 2356 wrote to memory of 2036	2356	b94504dd45589f48b6db7e5a22904b98.exe	cmd.exe
PID 2356 wrote to memory of 2036	2356	b94504dd45589f48b6db7e5a22904b98.exe	cmd.exe
PID 2356 wrote to memory of 2036	2356	b94504dd45589f48b6db7e5a22904b98.exe	cmd.exe
PID 2356 wrote to memory of 2036	2356	b94504dd45589f48b6db7e5a22904b98.exe	cmd.exe
PID 2036 wrote to memory of 2212	2036	cmd.exe	WerFault.exe
PID 2036 wrote to memory of 2212	2036	cmd.exe	WerFault.exe
PID 2036 wrote to memory of 2212	2036	cmd.exe	WerFault.exe
PID 2036 wrote to memory of 2212	2036	cmd.exe	WerFault.exe
PID 1172 wrote to memory of 1436	1172	ygfiyp.exe	conhost.exe
PID 1172 wrote to memory of 1436	1172	ygfiyp.exe	conhost.exe
PID 1172 wrote to memory of 1436	1172	ygfiyp.exe	conhost.exe
PID 1172 wrote to memory of 1436	1172	ygfiyp.exe	conhost.exe
PID 1172 wrote to memory of 1436	1172	ygfiyp.exe	conhost.exe
PID 1172 wrote to memory of 2212	1172	ygfiyp.exe	WerFault.exe
PID 1172 wrote to memory of 2212	1172	ygfiyp.exe	WerFault.exe
PID 1172 wrote to memory of 2212	1172	ygfiyp.exe	WerFault.exe
PID 1172 wrote to memory of 2212	1172	ygfiyp.exe	WerFault.exe
PID 1172 wrote to memory of 2212	1172	ygfiyp.exe	WerFault.exe
PID 2212 wrote to memory of 2112	2212	WerFault.exe	WerFault.exe
PID 2212 wrote to memory of 2112	2212	WerFault.exe	WerFault.exe
PID 2212 wrote to memory of 2112	2212	WerFault.exe	WerFault.exe
PID 2212 wrote to memory of 2112	2212	WerFault.exe	WerFault.exe

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1120

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1180

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1224
- C:\Users\Admin\AppData\Local\Temp\b94504dd45589f48b6db7e5a22904b98.exe
  "C:\Users\Admin\AppData\Local\Temp\b94504dd45589f48b6db7e5a22904b98.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:2356
- - C:\Users\Admin\AppData\Roaming\Omaqca\ygfiyp.exe
    "C:\Users\Admin\AppData\Roaming\Omaqca\ygfiyp.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:1172
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpf254cc23.bat"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2036
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2036 -s 112
      4⤵
      Program crash
      Suspicious use of WriteProcessMemory
      PID:2212
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2212 -s 528
        5⤵
        Program crash
        
        PID:2112

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1008

C:\Windows\system32\conhost.exe
\??\C:\Windows\system32\conhost.exe "-18957572092032728790-1201611613102363964-185570640519242553181616937039-2104987912"
1⤵
PID:1436

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

\Users\Admin\AppData\Roaming\Omaqca\ygfiyp.exe

Filesize
363KB

MD5
3304f456992bd2859d2aa9a96dfd7240

SHA1
c7823210d56b51497afd619e1a16495b0f6532e4

SHA256
c4565e695795819ab25454874e66a4831b05580c332b66685fd4d7caf7a3d404

SHA512
174ff6c5a365b5976f4f3a330be589a10ea96b15984ba298f34d41fa6c5086dc4d1325574b7999c3eb91a56396591755f60901c2daa8de3481177b05e8d19e88

Download Submit
memory/1008-42-0x00000000002B0000-0x00000000002F2000-memory.dmp

Filesize
264KB

Download
memory/1008-41-0x00000000002B0000-0x00000000002F2000-memory.dmp

Filesize
264KB

Download
memory/1008-40-0x00000000002B0000-0x00000000002F2000-memory.dmp

Filesize
264KB

Download
memory/1008-39-0x00000000002B0000-0x00000000002F2000-memory.dmp

Filesize
264KB

Download
memory/1120-20-0x0000000000410000-0x0000000000452000-memory.dmp

Filesize
264KB

Download
memory/1120-18-0x0000000000410000-0x0000000000452000-memory.dmp

Filesize
264KB

Download
memory/1120-19-0x0000000000410000-0x0000000000452000-memory.dmp

Filesize
264KB

Download
memory/1120-15-0x0000000000410000-0x0000000000452000-memory.dmp

Filesize
264KB

Download
memory/1120-21-0x0000000000410000-0x0000000000452000-memory.dmp

Filesize
264KB

Download
memory/1172-184-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1172-16-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1172-13-0x0000000000380000-0x00000000003DE000-memory.dmp

Filesize
376KB

Download
memory/1172-12-0x0000000000330000-0x0000000000372000-memory.dmp

Filesize
264KB

Download
memory/1180-24-0x00000000001B0000-0x00000000001F2000-memory.dmp

Filesize
264KB

Download
memory/1180-28-0x00000000001B0000-0x00000000001F2000-memory.dmp

Filesize
264KB

Download
memory/1180-26-0x00000000001B0000-0x00000000001F2000-memory.dmp

Filesize
264KB

Download
memory/1180-30-0x00000000001B0000-0x00000000001F2000-memory.dmp

Filesize
264KB

Download
memory/1224-36-0x0000000002D60000-0x0000000002DA2000-memory.dmp

Filesize
264KB

Download
memory/1224-33-0x0000000002D60000-0x0000000002DA2000-memory.dmp

Filesize
264KB

Download
memory/1224-35-0x0000000002D60000-0x0000000002DA2000-memory.dmp

Filesize
264KB

Download
memory/1224-34-0x0000000002D60000-0x0000000002DA2000-memory.dmp

Filesize
264KB

Download
memory/2356-53-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-63-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-51-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-49-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-0-0x0000000000360000-0x00000000003A2000-memory.dmp

Filesize
264KB

Download
memory/2356-55-0x0000000000500000-0x0000000000542000-memory.dmp

Filesize
264KB

Download
memory/2356-57-0x0000000077AA0000-0x0000000077AA1000-memory.dmp

Filesize
4KB

Download
memory/2356-56-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-48-0x0000000000500000-0x0000000000542000-memory.dmp

Filesize
264KB

Download
memory/2356-46-0x0000000000500000-0x0000000000542000-memory.dmp

Filesize
264KB

Download
memory/2356-45-0x0000000000500000-0x0000000000542000-memory.dmp

Filesize
264KB

Download
memory/2356-44-0x0000000000500000-0x0000000000542000-memory.dmp

Filesize
264KB

Download
memory/2356-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2356-4-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2356-1-0x0000000000460000-0x00000000004BE000-memory.dmp

Filesize
376KB

Download
memory/2356-47-0x0000000000500000-0x0000000000542000-memory.dmp

Filesize
264KB

Download
memory/2356-61-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-59-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-65-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-67-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-69-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-71-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-73-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-79-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-77-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-75-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-143-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2356-165-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2356-166-0x0000000000500000-0x0000000000542000-memory.dmp

Filesize
264KB

Download
memory/2356-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download