b21d8eb00418fe3c6b3d46b12dc2b6e04f2d4c74ea03e73da116dab8dca3cda1

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-05-2024 21:19

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General

Target

202405245e1cfce2d2ce7724315dc6b3c584dc06cryptolocker.exe
Size

91KB
MD5

5e1cfce2d2ce7724315dc6b3c584dc06
SHA1

c32bbc8cf357f4cb04ad8d5ec7a8f67915459d34
SHA256

b21d8eb00418fe3c6b3d46b12dc2b6e04f2d4c74ea03e73da116dab8dca3cda1
SHA512

5675076a1f1a3f8b8bf39e9855cf0ea89da90f513b25710a4dae6e3ef9eb5ff5893c4bf8204dabde8623900b0ad0fbc7e88e250d5e02ca9c23b244f94e4d7afb
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgddjF:AnBdOOtEvwDpj6zd

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1680	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2168	202405245e1cfce2d2ce7724315dc6b3c584dc06cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2168-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000b000000015a2d-11.dat	upx
behavioral1/memory/2168-15-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/1680-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/1680-27-0x0000000000500000-0x000000000050F000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 1680	2168	202405245e1cfce2d2ce7724315dc6b3c584dc06cryptolocker.exe	28
PID 2168 wrote to memory of 1680	2168	202405245e1cfce2d2ce7724315dc6b3c584dc06cryptolocker.exe	28
PID 2168 wrote to memory of 1680	2168	202405245e1cfce2d2ce7724315dc6b3c584dc06cryptolocker.exe	28
PID 2168 wrote to memory of 1680	2168	202405245e1cfce2d2ce7724315dc6b3c584dc06cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\202405245e1cfce2d2ce7724315dc6b3c584dc06cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\202405245e1cfce2d2ce7724315dc6b3c584dc06cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1680

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\asih.exe

Filesize
91KB

MD5
183d8e0e567c7119b1a10df81a954ceb

SHA1
08eafb7ead13445a5ca298005209748b995f97ee

SHA256
7e4ce007a6b174376b47141e2a278b22ea7248b4183768c48f2a0b372776bcc1

SHA512
6fc2358b72436f49457cdf44ccfb48c85780e655414fffbb11f599c966ec51193efb7e137a1778950520aa4f9eccd70201ee5732fcd45b39a16cdbcb1b87021e

Download Submit
memory/1680-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1680-20-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1680-19-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1680-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2168-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2168-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2168-3-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2168-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2168-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download