b1d69f71c7794dbfa0abb70e4a033969b460407d68c971102f69214812235dd4

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
05/08/2023, 10:49

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General

Target

6af88e7fbf9a8a1ac882b101acbdd5bc_cryptolocker_JC.exe
Size

137KB
MD5

6af88e7fbf9a8a1ac882b101acbdd5bc
SHA1

2a29707d1257e30dc4b9684a007f3580202eaaaa
SHA256

b1d69f71c7794dbfa0abb70e4a033969b460407d68c971102f69214812235dd4
SHA512

4dfbed3886b2165a0ab239d2e889fbd3afd3a0e48c648e83339f1a1f3c4c12ff4c1fdf043ac948d076c906996e6d6cd415369ce6f39e34126e1ba10b784bee67
SSDEEP

1536:z6QFElP6n+gKmddpMOtEvwDpj3GYQbN/PKwNgp699G/T6:z6a+CdOOtEvwDpjczr

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1692	asih.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4460-133-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000800000002322a-146.dat	upx
behavioral2/files/0x000800000002322a-148.dat	upx
behavioral2/files/0x000800000002322a-149.dat	upx
behavioral2/memory/4460-151-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1692-159-0x0000000000500000-0x0000000000510000-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 3 IoCs

description	pid	Process	procid_target
PID 4460 wrote to memory of 1692	4460	6af88e7fbf9a8a1ac882b101acbdd5bc_cryptolocker_JC.exe	81
PID 4460 wrote to memory of 1692	4460	6af88e7fbf9a8a1ac882b101acbdd5bc_cryptolocker_JC.exe	81
PID 4460 wrote to memory of 1692	4460	6af88e7fbf9a8a1ac882b101acbdd5bc_cryptolocker_JC.exe	81

C:\Users\Admin\AppData\Local\Temp\6af88e7fbf9a8a1ac882b101acbdd5bc_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\6af88e7fbf9a8a1ac882b101acbdd5bc_cryptolocker_JC.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4460
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1692

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\asih.exe

Filesize
137KB

MD5
3a70bf2e0413a64573d960ff227fa979

SHA1
e140ca59c2a2f22cd76194396134451c75415a7f

SHA256
f7cac8b0a410a79b3009609d4ff943f022210fc93e074af173ef0e5674353d91

SHA512
c280d6bf8689b35bcd7372d558d1e83852b103d2b338eee15df6071a7510bf6819c5a66ca09029281749bec5f11848e9eacb9fbcc7fb8c7c962e6ced5e1cce32

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

Filesize
137KB

MD5
3a70bf2e0413a64573d960ff227fa979

SHA1
e140ca59c2a2f22cd76194396134451c75415a7f

SHA256
f7cac8b0a410a79b3009609d4ff943f022210fc93e074af173ef0e5674353d91

SHA512
c280d6bf8689b35bcd7372d558d1e83852b103d2b338eee15df6071a7510bf6819c5a66ca09029281749bec5f11848e9eacb9fbcc7fb8c7c962e6ced5e1cce32

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

Filesize
137KB

MD5
3a70bf2e0413a64573d960ff227fa979

SHA1
e140ca59c2a2f22cd76194396134451c75415a7f

SHA256
f7cac8b0a410a79b3009609d4ff943f022210fc93e074af173ef0e5674353d91

SHA512
c280d6bf8689b35bcd7372d558d1e83852b103d2b338eee15df6071a7510bf6819c5a66ca09029281749bec5f11848e9eacb9fbcc7fb8c7c962e6ced5e1cce32

Download Submit
memory/1692-153-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/1692-152-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/1692-159-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4460-133-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4460-134-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4460-135-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4460-136-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/4460-151-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download