bfb6db1df972392eb8965569506b75df934c1520ee180b8cb7e196520433c433

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
27-03-2024 00:11

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General

Target

bfb6db1df972392eb8965569506b75df934c1520ee180b8cb7e196520433c433.exe
Size

257KB
MD5

de056650c55e607716958a66789b8617
SHA1

4b3eb9270b086b20f6d87fc48ee58b1cf44ecd60
SHA256

bfb6db1df972392eb8965569506b75df934c1520ee180b8cb7e196520433c433
SHA512

1156b7eb58596fd4dfec60529299cdf5518a9bc3ea15cb211097d9b94f233c9a0533ae18cf8c4147b759d779077b8b935d7114e7aa3e2ae5b95e663cae506cf8
SSDEEP

3072:e6yOaBa13l0TX70RaAWU22E9/EaR6Gye3BwOwfWx5ZIAKCbZ9xK/EFy+:G/YsT7m22E95R614BXYu57KCb3xKMw+

Score

8^/10

persistence

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Executes dropped EXE 1 IoCs

pid	Process
2476	cwtsudd.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\njrippn.dll	cwtsudd.exe
File created	C:\PROGRA~3\Mozilla\cwtsudd.exe	bfb6db1df972392eb8965569506b75df934c1520ee180b8cb7e196520433c433.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2184	bfb6db1df972392eb8965569506b75df934c1520ee180b8cb7e196520433c433.exe
2476	cwtsudd.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2924 wrote to memory of 2476	2924	taskeng.exe	29
PID 2924 wrote to memory of 2476	2924	taskeng.exe	29
PID 2924 wrote to memory of 2476	2924	taskeng.exe	29
PID 2924 wrote to memory of 2476	2924	taskeng.exe	29

C:\Users\Admin\AppData\Local\Temp\bfb6db1df972392eb8965569506b75df934c1520ee180b8cb7e196520433c433.exe
"C:\Users\Admin\AppData\Local\Temp\bfb6db1df972392eb8965569506b75df934c1520ee180b8cb7e196520433c433.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
PID:2184

C:\Windows\system32\taskeng.exe
taskeng.exe {669A677A-C1A8-4070-8EE8-EE18433CB5C9} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2924
- C:\PROGRA~3\Mozilla\cwtsudd.exe
  C:\PROGRA~3\Mozilla\cwtsudd.exe -ldxtpdk
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of UnmapMainImage
  PID:2476

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

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

Filesize
257KB

MD5
a8e0a8257ed3ee03ea3150974893371f

SHA1
e40d24594346b1a10c96a587ad018c120e706dfb

SHA256
75fd8c43ff56571b60aa4243d1bc30f85ed8ef1aa75c2c7720ea468e83a44fcf

SHA512
f74e00ffae8e8328b1fb9dcd28b74482fbaf6a3e667f1dfcb35f5dc5c78dea9d649d8e243fabd752a0ae7fba2716160474ed6c8de9ad4fd30567edf8004edcc2

Download Submit
memory/2184-1-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2184-2-0x00000000002E0000-0x000000000033B000-memory.dmp

Filesize
364KB

Download
memory/2184-0-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2184-4-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2476-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2476-8-0x0000000000460000-0x00000000004BB000-memory.dmp

Filesize
364KB

Download
memory/2476-9-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/2476-11-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download