cf015c28f91e127dca35b20a448ae188c55cbf4d168953cd4d6bedd76dde95f4

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
22/05/2024, 05:37

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General

Target

20240521c1ac511a14d3e82f1569a83f0c9472edcryptolocker.exe
Size

77KB
MD5

c1ac511a14d3e82f1569a83f0c9472ed
SHA1

10671667599cfd869ce104348429780c90e22a63
SHA256

cf015c28f91e127dca35b20a448ae188c55cbf4d168953cd4d6bedd76dde95f4
SHA512

7393f6e0317d3229cf54ac932a31bd640d610a9e3925550cc3a6360728f632e167fc3793077ffcc32043101895972dee93d0d3b6b10a7b4f1507e2679483ab6e
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdxPUxp:T6a+rdOOtEvwDpjNtHPy

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2668	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2196	20240521c1ac511a14d3e82f1569a83f0c9472edcryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000d00000001227e-11.dat	upx
behavioral1/memory/2196-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2668-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2668-25-0x0000000000500000-0x0000000000510000-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 2196 wrote to memory of 2668	2196	20240521c1ac511a14d3e82f1569a83f0c9472edcryptolocker.exe	28
PID 2196 wrote to memory of 2668	2196	20240521c1ac511a14d3e82f1569a83f0c9472edcryptolocker.exe	28
PID 2196 wrote to memory of 2668	2196	20240521c1ac511a14d3e82f1569a83f0c9472edcryptolocker.exe	28
PID 2196 wrote to memory of 2668	2196	20240521c1ac511a14d3e82f1569a83f0c9472edcryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\20240521c1ac511a14d3e82f1569a83f0c9472edcryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\20240521c1ac511a14d3e82f1569a83f0c9472edcryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2668

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
78KB

MD5
e56b8cf14ec2d512d3cbf641670df90d

SHA1
df1d5190f437e976321640a3d93c5161b4e071d0

SHA256
da57bf6dd53c3c1b9043e919c525219b6446cb50aaa37a46eafd2b97b7b6b8ad

SHA512
16291954a2012a2e2fa198be031837a1e6be144e553bb08530c08fb5672cf03dbb452ce73827d5a66074c147f83df74fc2b1d0ba0b86996693c985b51fbf1b87

Download Submit
memory/2196-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2196-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2196-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2196-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2196-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2668-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2668-18-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2668-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download