monster | 9f7be9bf913d8378f094b3f6416db9aa4c80c380000202f7cfaddadb6efc41b4

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
25-07-2024 04:53

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General

Target

9f7be9bf913d8378f094b3f6416db9aa4c80c380000202f7cfaddadb6efc41b4.exe
Size

10.7MB
MD5

c8cf26425a6ce325035e6da8dfb16c4e
SHA1

31c2b3a26c05b4bf8dea8718d1df13a0c2be22ee
SHA256

9f7be9bf913d8378f094b3f6416db9aa4c80c380000202f7cfaddadb6efc41b4
SHA512

0321e48e185c22165ac6429e08afac1ccfdf393249436c8eac8a6d64794b3b399740aa5b2be23d568f57495d17e9220280ed1c2ea8f012b2c4021beb02cbc646
SSDEEP

196608:SnvxO+j9q6y7PuZANMCgvUF+j6yrO5H+KB4kj6vgC51U7BlUdinrDRQF6f1:WvxPBly7Pumdgv9RrOF+LkGvgMGBa4n7

Score

10^/10

monster stealer

Malware Config

Signatures

Detects Monster Stealer. 2 IoCs

resource	yara_rule
behavioral1/files/0x00080000000164b1-37.dat	family_monster
behavioral1/memory/2744-40-0x000000013F140000-0x000000014037E000-memory.dmp	family_monster

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

Executes dropped EXE 1 IoCs

pid	Process
2744	stub.exe

Loads dropped DLL 2 IoCs

pid	Process
2624	9f7be9bf913d8378f094b3f6416db9aa4c80c380000202f7cfaddadb6efc41b4.exe
2744	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 2624 wrote to memory of 2744	2624	9f7be9bf913d8378f094b3f6416db9aa4c80c380000202f7cfaddadb6efc41b4.exe	30
PID 2624 wrote to memory of 2744	2624	9f7be9bf913d8378f094b3f6416db9aa4c80c380000202f7cfaddadb6efc41b4.exe	30
PID 2624 wrote to memory of 2744	2624	9f7be9bf913d8378f094b3f6416db9aa4c80c380000202f7cfaddadb6efc41b4.exe	30

C:\Users\Admin\AppData\Local\Temp\9f7be9bf913d8378f094b3f6416db9aa4c80c380000202f7cfaddadb6efc41b4.exe
"C:\Users\Admin\AppData\Local\Temp\9f7be9bf913d8378f094b3f6416db9aa4c80c380000202f7cfaddadb6efc41b4.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Users\Admin\AppData\Local\Temp\onefile_2624_133663568225878000\stub.exe
  "C:\Users\Admin\AppData\Local\Temp\9f7be9bf913d8378f094b3f6416db9aa4c80c380000202f7cfaddadb6efc41b4.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2744

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_2624_133663568225878000\python310.dll

Filesize
4.3MB

MD5
c80b5cb43e5fe7948c3562c1fff1254e

SHA1
f73cb1fb9445c96ecd56b984a1822e502e71ab9d

SHA256
058925e4bbfcb460a3c00ec824b8390583baef0c780a7c7ff01d43d9eec45f20

SHA512
faa97a9d5d2a0bf78123f19f8657c24921b907268938c26f79e1df6d667f7bee564259a3a11022e8629996406cda9fa00434bb2b1de3e10b9bddc59708dbad81

Download Submit
C:\Users\Admin\AppData\Local\Temp\onefile_2624_133663568225878000\stub.exe

Filesize
18.0MB

MD5
1cf17408048317fc82265ed6a1c7893d

SHA1
9bfec40d6eb339c5a6c2ad6e5fa7cebc147654c5

SHA256
1352ad9860a42137b096d9675a7b8d578fbc596d965de3cb352619cbe6aaf4e9

SHA512
66322d7cb5931017acaa29970da48642d03ce35007f130511b2848b67169c1dd4167f1e5a31e5e1dfe5f7122846482bdb878b5cd695ac58009033fd620813a0f

Download Submit
memory/2624-75-0x000000013F440000-0x000000013FF18000-memory.dmp

Filesize
10.8MB

Download
memory/2744-40-0x000000013F140000-0x000000014037E000-memory.dmp

Filesize
18.2MB

Download