monster | e33a49717f54c875b796b7ac60bf802ce09320b78c8042004b039e81272808aa

Analysis

max time kernel
12s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
28-10-2024 19:03

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General

Target

61c881908bdc8be9c8ee8e42728b6f116768ff2a4edd540e1d82a02c51fd6322.exe
Size

10.7MB
MD5

231f199ed9540c2d1cbf4233be515988
SHA1

99cbb7341dffb6925a88525ea82ca8cb0cbe10c9
SHA256

61c881908bdc8be9c8ee8e42728b6f116768ff2a4edd540e1d82a02c51fd6322
SHA512

be67e81655f3474b07af2c03497c31a6e6cb7d97801086ba8a9c410e3de7fb8c62ec6dc8935a9e5ae37bef48f5bec1799c551c3bf8354be58ec9dfba57121ff2
SSDEEP

196608:UPAlP3Zobseq6ERnzeljovAlpbmVjHQLmcVZOfcvL2sTD:KCpoSvRnzeOvW6QLLiE

Score

10^/10

monster stealer

Malware Config

Signatures

Detects Monster Stealer. 2 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016ccc-35.dat	family_monster
behavioral1/memory/2896-40-0x000000013F090000-0x00000001402C9000-memory.dmp	family_monster

Monster
Monster is a Golang stealer that was discovered in 2024.
stealer monster
Monster family
monster

Executes dropped EXE 1 IoCs

pid	Process
2896	stub.exe

Loads dropped DLL 2 IoCs

pid	Process
2412	61c881908bdc8be9c8ee8e42728b6f116768ff2a4edd540e1d82a02c51fd6322.exe
2896	stub.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2896	2412	61c881908bdc8be9c8ee8e42728b6f116768ff2a4edd540e1d82a02c51fd6322.exe	29
PID 2412 wrote to memory of 2896	2412	61c881908bdc8be9c8ee8e42728b6f116768ff2a4edd540e1d82a02c51fd6322.exe	29
PID 2412 wrote to memory of 2896	2412	61c881908bdc8be9c8ee8e42728b6f116768ff2a4edd540e1d82a02c51fd6322.exe	29

C:\Users\Admin\AppData\Local\Temp\61c881908bdc8be9c8ee8e42728b6f116768ff2a4edd540e1d82a02c51fd6322.exe
"C:\Users\Admin\AppData\Local\Temp\61c881908bdc8be9c8ee8e42728b6f116768ff2a4edd540e1d82a02c51fd6322.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Users\Admin\AppData\Local\Temp\onefile_2412_133746158215058000\stub.exe
  "C:\Users\Admin\AppData\Local\Temp\61c881908bdc8be9c8ee8e42728b6f116768ff2a4edd540e1d82a02c51fd6322.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\onefile_2412_133746158215058000\python310.dll

Filesize
4.3MB

MD5
c80b5cb43e5fe7948c3562c1fff1254e

SHA1
f73cb1fb9445c96ecd56b984a1822e502e71ab9d

SHA256
058925e4bbfcb460a3c00ec824b8390583baef0c780a7c7ff01d43d9eec45f20

SHA512
faa97a9d5d2a0bf78123f19f8657c24921b907268938c26f79e1df6d667f7bee564259a3a11022e8629996406cda9fa00434bb2b1de3e10b9bddc59708dbad81

Download Submit
\Users\Admin\AppData\Local\Temp\onefile_2412_133746158215058000\stub.exe

Filesize
17.9MB

MD5
50cfa63d027caedbb771f7c59a7c55b5

SHA1
0ca45e04c15145ab846e7e92e7a10b9a2a17fc46

SHA256
3758d57d1dd25b7e6ef83b0eb2d3cff6e07314d5af969bb6354678fa8f73f7b9

SHA512
d96a9b4bb2abc9646debf5d94237acf4bff984017ed06a3548c43b99916ec7ccd4b0d1347b74dcddcd7737e82e6fb973e132b0fe025dd550c965d723a30fda4c

Download Submit
memory/2412-75-0x000000013F1D0000-0x000000013FCA7000-memory.dmp

Filesize
10.8MB

Download
memory/2896-40-0x000000013F090000-0x00000001402C9000-memory.dmp

Filesize
18.2MB

Download