a6f10947d6c37b62a4c0f5e4d0d32cc826a957c7d1026f316d5651262c4f0b24

Analysis

max time kernel
150s
max time network
132s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
24-05-2024 02:57

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General

Target

Original/fax_390392029_072514.exe
Size

276KB
MD5

4ba43f0b82f86efed437c8523f7a4dee
SHA1

356b21b749c8bc5e2295a3db62ea03c47cb4c1cf
SHA256

10745182ac1b738e4a363166f650069d16b81873b3bbb1990e7d07cb652495e8
SHA512

b0d36313226069688e1710be561f6bb75e232ee35212d41b50e12800ef54c48fbe29b1e97d8d08add642714887a10d598a06cfd2b8a609556242689496ad82a0
SSDEEP

6144:NYIPjoJyR6dNNdUvw9IbxQi2qJ+4DhYxrtaDi:NY/eP9j2LvxaDi

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2240 cmd.exe
Executes dropped EXE 1 IoCs

Processes:

cmd.exe

pid process

2240 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

fax_390392029_072514.exe

pid process

2848 fax_390392029_072514.exe

pid	process
2848	fax_390392029_072514.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

cmd.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\GoogleUpdate = "C:\\Users\\Admin\\AppData\\Local\\cmd.exe"	cmd.exe

Drops file in Windows directory 2 IoCs

Processes:

fax_390392029_072514.execmd.exe

description	ioc	process
File opened for modification	C:\Windows\fax_390392029_072514.INI	fax_390392029_072514.exe
File opened for modification	C:\Windows\cmd.INI	cmd.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

cmd.exe

pid	process
2240	cmd.exe
2240	cmd.exe
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Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

cmd.exe

pid process

2240 cmd.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

description pid process

Token: SeDebugPrivilege 1380
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

pid process

1380
1380
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

pid process

1380
1380
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

fax_390392029_072514.execmd.exe

pid process

2848 fax_390392029_072514.exe
2848 fax_390392029_072514.exe
2240 cmd.exe
2240 cmd.exe
Suspicious use of UnmapMainImage 2 IoCs

Processes:

fax_390392029_072514.execmd.exe

pid process

2848 fax_390392029_072514.exe
2240 cmd.exe

description	pid	process
Token: SeDebugPrivilege	1380

pid	process
1380
1380

pid	process
1380
1380

pid	process
2848	fax_390392029_072514.exe
2848	fax_390392029_072514.exe
2240	cmd.exe
2240	cmd.exe

pid	process
2848	fax_390392029_072514.exe
2240	cmd.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

fax_390392029_072514.exe

description	pid	process	target process
PID 2848 wrote to memory of 2240	2848	fax_390392029_072514.exe	cmd.exe
PID 2848 wrote to memory of 2240	2848	fax_390392029_072514.exe	cmd.exe
PID 2848 wrote to memory of 2240	2848	fax_390392029_072514.exe	cmd.exe
PID 2848 wrote to memory of 2240	2848	fax_390392029_072514.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\Original\fax_390392029_072514.exe
"C:\Users\Admin\AppData\Local\Temp\Original\fax_390392029_072514.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2848

C:\Users\Admin\AppData\Local\cmd.exe
C:\Users\Admin\AppData\Local\Temp\Original\fax_390392029_072514.exe
2⤵
- Deletes itself
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of UnmapMainImage
PID:2240

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\Local\cmd.exe

Filesize
276KB

MD5
4ba43f0b82f86efed437c8523f7a4dee

SHA1
356b21b749c8bc5e2295a3db62ea03c47cb4c1cf

SHA256
10745182ac1b738e4a363166f650069d16b81873b3bbb1990e7d07cb652495e8

SHA512
b0d36313226069688e1710be561f6bb75e232ee35212d41b50e12800ef54c48fbe29b1e97d8d08add642714887a10d598a06cfd2b8a609556242689496ad82a0

Download Submit
memory/1380-23-0x00000000024A0000-0x00000000024CE000-memory.dmp

Filesize
184KB

Download
memory/1380-21-0x00000000024A0000-0x00000000024CE000-memory.dmp

Filesize
184KB

Download
memory/1380-24-0x0000000002470000-0x000000000249B000-memory.dmp

Filesize
172KB

Download
memory/1380-25-0x00000000024A0000-0x00000000024CE000-memory.dmp

Filesize
184KB

Download
memory/1380-27-0x00000000024A0000-0x00000000024CE000-memory.dmp

Filesize
184KB

Download
memory/1380-28-0x00000000024A0000-0x00000000024CE000-memory.dmp

Filesize
184KB

Download
memory/2240-14-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2240-26-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/2848-2-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/2848-0-0x000000000043F000-0x0000000000441000-memory.dmp

Filesize
8KB

Download
memory/2848-12-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/2848-1-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download