monster | 7bb30c9b75980b7bcd755d2d968077a2c8c582a0ca11e86ae9454d067182139a

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
11-07-2024 22:36

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General

Target

7bb30c9b75980b7bcd755d2d968077a2c8c582a0ca11e86ae9454d067182139a.exe
Size

10.7MB
MD5

f7f9d3c98351d9be736e7aafb3563561
SHA1

1f60f25b4b8f3f38a9f40680289554216c2f9924
SHA256

7bb30c9b75980b7bcd755d2d968077a2c8c582a0ca11e86ae9454d067182139a
SHA512

fed3e1bb950d746f1ed4dffeb88259b2a6e8ad40afe161469e8b0cff7c70e40617d3ca1dffc2899d3ac35790d1817f1d54724ead5d5941d485c6c67070070a87
SSDEEP

196608:es+j9q6y7PuZANMUgvUExd8zeiHf/jC51U7BlUdinrDRQF6f1:eNBly7Pum3gvizei/rMGBa4nr1jt

Score

10^/10

monster stealer

Malware Config

Signatures

Detects Monster Stealer. 2 IoCs

resource	yara_rule
behavioral1/files/0x00070000000194f0-35.dat	family_monster
behavioral1/memory/2736-40-0x000000013F020000-0x000000014025E000-memory.dmp	family_monster

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

Executes dropped EXE 1 IoCs

pid	Process
2736	stub.exe

Loads dropped DLL 2 IoCs

pid	Process
2584	7bb30c9b75980b7bcd755d2d968077a2c8c582a0ca11e86ae9454d067182139a.exe
2736	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 2584 wrote to memory of 2736	2584	7bb30c9b75980b7bcd755d2d968077a2c8c582a0ca11e86ae9454d067182139a.exe	30
PID 2584 wrote to memory of 2736	2584	7bb30c9b75980b7bcd755d2d968077a2c8c582a0ca11e86ae9454d067182139a.exe	30
PID 2584 wrote to memory of 2736	2584	7bb30c9b75980b7bcd755d2d968077a2c8c582a0ca11e86ae9454d067182139a.exe	30

C:\Users\Admin\AppData\Local\Temp\7bb30c9b75980b7bcd755d2d968077a2c8c582a0ca11e86ae9454d067182139a.exe
"C:\Users\Admin\AppData\Local\Temp\7bb30c9b75980b7bcd755d2d968077a2c8c582a0ca11e86ae9454d067182139a.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Users\Admin\AppData\Local\Temp\onefile_2584_133652109913566000\stub.exe
  "C:\Users\Admin\AppData\Local\Temp\7bb30c9b75980b7bcd755d2d968077a2c8c582a0ca11e86ae9454d067182139a.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2736

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

\Users\Admin\AppData\Local\Temp\onefile_2584_133652109913566000\python310.dll

Filesize
4.3MB

MD5
c80b5cb43e5fe7948c3562c1fff1254e

SHA1
f73cb1fb9445c96ecd56b984a1822e502e71ab9d

SHA256
058925e4bbfcb460a3c00ec824b8390583baef0c780a7c7ff01d43d9eec45f20

SHA512
faa97a9d5d2a0bf78123f19f8657c24921b907268938c26f79e1df6d667f7bee564259a3a11022e8629996406cda9fa00434bb2b1de3e10b9bddc59708dbad81

Download Submit
\Users\Admin\AppData\Local\Temp\onefile_2584_133652109913566000\stub.exe

Filesize
18.0MB

MD5
29c69826ec2d163248c5c197bca46bf9

SHA1
09bbc60b1cb75a889cf1f3e69b559614756ce5b2

SHA256
97fac7dcecc7df1aa7e772929db5f13b6397097b729be7c809f4313906f7c844

SHA512
f1ed496499adcbff74a1f01d7beb0823533292d436054519d1a1c18ce6ba1b3d63073f36ccc886a60347dc06e1d7a4a715811b95f084d16513051658133c8dbf

Download Submit
memory/2584-75-0x000000013FAF0000-0x00000001405C7000-memory.dmp

Filesize
10.8MB

Download
memory/2736-40-0x000000013F020000-0x000000014025E000-memory.dmp

Filesize
18.2MB

Download