monster | 59ccbffadb99ec35b6f8659aff134a55f5f09c505ff3deedeee388a1d3f4a91f

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
18-07-2024 22:34

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General

Target

59ccbffadb99ec35b6f8659aff134a55f5f09c505ff3deedeee388a1d3f4a91f.exe
Size

10.7MB
MD5

3837715b7a44d4255ab1190ec2f53605
SHA1

e652ffa3c84e64aad39f7e1766a15892bcb40ac4
SHA256

59ccbffadb99ec35b6f8659aff134a55f5f09c505ff3deedeee388a1d3f4a91f
SHA512

4a8ec8f08771588c46653a8b8e7fc70e262d77b254cc5ab098f52f1384b34cb59dedbbb410af208fdabe3e88eb5f9550ca4e653d142636d29f918e9c491a20a5
SSDEEP

196608:ABs+j9q6y7PuZANMOgvUcjukIPjOpTKku/v6vgC5xU7BlUdinrDRQF6f1:YNBly7Pumpgv6kW0kKvggGBa4nr1jt

Score

10^/10

monster stealer

Malware Config

Signatures

Detects Monster Stealer. 2 IoCs

resource	yara_rule
behavioral1/files/0x00080000000171a6-35.dat	family_monster
behavioral1/memory/1448-40-0x000000013F090000-0x00000001402CE000-memory.dmp	family_monster

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

Executes dropped EXE 1 IoCs

pid	Process
1448	stub.exe

Loads dropped DLL 2 IoCs

pid	Process
2224	59ccbffadb99ec35b6f8659aff134a55f5f09c505ff3deedeee388a1d3f4a91f.exe
1448	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 2224 wrote to memory of 1448	2224	59ccbffadb99ec35b6f8659aff134a55f5f09c505ff3deedeee388a1d3f4a91f.exe	30
PID 2224 wrote to memory of 1448	2224	59ccbffadb99ec35b6f8659aff134a55f5f09c505ff3deedeee388a1d3f4a91f.exe	30
PID 2224 wrote to memory of 1448	2224	59ccbffadb99ec35b6f8659aff134a55f5f09c505ff3deedeee388a1d3f4a91f.exe	30

C:\Users\Admin\AppData\Local\Temp\59ccbffadb99ec35b6f8659aff134a55f5f09c505ff3deedeee388a1d3f4a91f.exe
"C:\Users\Admin\AppData\Local\Temp\59ccbffadb99ec35b6f8659aff134a55f5f09c505ff3deedeee388a1d3f4a91f.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\Temp\onefile_2224_133658157024188000\stub.exe
  "C:\Users\Admin\AppData\Local\Temp\59ccbffadb99ec35b6f8659aff134a55f5f09c505ff3deedeee388a1d3f4a91f.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1448

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_2224_133658157024188000\python310.dll

Filesize
4.3MB

MD5
c80b5cb43e5fe7948c3562c1fff1254e

SHA1
f73cb1fb9445c96ecd56b984a1822e502e71ab9d

SHA256
058925e4bbfcb460a3c00ec824b8390583baef0c780a7c7ff01d43d9eec45f20

SHA512
faa97a9d5d2a0bf78123f19f8657c24921b907268938c26f79e1df6d667f7bee564259a3a11022e8629996406cda9fa00434bb2b1de3e10b9bddc59708dbad81

Download Submit
\Users\Admin\AppData\Local\Temp\onefile_2224_133658157024188000\stub.exe

Filesize
18.0MB

MD5
9029b4465072bea5bd86bdcd46725cd8

SHA1
9f721371eddc1c2b6c4a3453dc5208e391475335

SHA256
511228a7b9067018018849e8b052cc86b9ad4e2e0bc6ca5f3ea03394d92e73db

SHA512
45dff4271a96bb282863c054f8584ec00332ca4660acf2d37450e4028492e615cddcdb259e09bdcd25446666746fa7decaefc3928c4e54924c08da206137587d

Download Submit
memory/1448-40-0x000000013F090000-0x00000001402CE000-memory.dmp

Filesize
18.2MB

Download
memory/2224-75-0x000000013F5A0000-0x0000000140078000-memory.dmp

Filesize
10.8MB

Download