400fc33c0fd9f0caafba6c544a10eac6c0329c486f2c83aadb99e3010797d748

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/10/2024, 22:38

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General

Target

400fc33c0fd9f0caafba6c544a10eac6c0329c486f2c83aadb99e3010797d748N.exe
Size

337KB
MD5

0c2585a869de3968cd401f640b8ecc30
SHA1

319500556455f2108ed4b15b95d11ca0e3a19b42
SHA256

400fc33c0fd9f0caafba6c544a10eac6c0329c486f2c83aadb99e3010797d748
SHA512

5c332fe9db696ee8b44d8ea358cf36a103b1ffc8c94052004a606ddae87cbef64f58aee1a405fb7a56c5d7637c722102bc15fa83c8811411cb2efd6d9af3d083
SSDEEP

3072:1bJ8MJJ/pZ22HPc+Q0j40UvWw48ddLM6hMLIokjwrhpcSvMi14:b5XG20ka48ddLM6njNSV4

Score

8^/10

discovery persistence privilege_escalation

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Executes dropped EXE 1 IoCs

pid	Process
836	uhtmzji.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\uhtmzji.exe	400fc33c0fd9f0caafba6c544a10eac6c0329c486f2c83aadb99e3010797d748N.exe
File created	C:\PROGRA~3\Mozilla\mwcbflb.dll	uhtmzji.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	400fc33c0fd9f0caafba6c544a10eac6c0329c486f2c83aadb99e3010797d748N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uhtmzji.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2364	400fc33c0fd9f0caafba6c544a10eac6c0329c486f2c83aadb99e3010797d748N.exe
836	uhtmzji.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2468 wrote to memory of 836	2468	taskeng.exe	31
PID 2468 wrote to memory of 836	2468	taskeng.exe	31
PID 2468 wrote to memory of 836	2468	taskeng.exe	31
PID 2468 wrote to memory of 836	2468	taskeng.exe	31

C:\Users\Admin\AppData\Local\Temp\400fc33c0fd9f0caafba6c544a10eac6c0329c486f2c83aadb99e3010797d748N.exe
"C:\Users\Admin\AppData\Local\Temp\400fc33c0fd9f0caafba6c544a10eac6c0329c486f2c83aadb99e3010797d748N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
PID:2364

C:\Windows\system32\taskeng.exe
taskeng.exe {75851AC6-0434-4038-9B12-0A54ABE28F8A} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2468
- C:\PROGRA~3\Mozilla\uhtmzji.exe
  C:\PROGRA~3\Mozilla\uhtmzji.exe -fbfzjgk
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  PID:836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\PROGRA~3\Mozilla\uhtmzji.exe

Filesize
337KB

MD5
88dcfa5f8a9d03c563e219290ab96b30

SHA1
9ad0c938a1cd99e291e2e9834acfd329a00b33fc

SHA256
e177b87ec8d0f3860157d21b7255b1931332f197203ce39e4c1abdda3e8de951

SHA512
da62c4bf3e6703cca0cb41fa969a69ff3226939ee15fd919fa079812016422fceeadecbfc159dbcf26151a5374f00b46d9692dcd6f647851e6d41f6a24c86869

Download Submit
memory/836-6-0x0000000000890000-0x00000000008EB000-memory.dmp

Filesize
364KB

Download
memory/836-7-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/836-9-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2364-1-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2364-0-0x0000000000330000-0x000000000038B000-memory.dmp

Filesize
364KB

Download
memory/2364-3-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download