037c931944896acda035e2392520d58f029c467747bb8ee3b3c2f4bc40707f25

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
06-03-2024 06:53

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General

Target

2024-03-06_ffffef086ca3963100c82add4a0d1f65_cryptolocker.exe
Size

47KB
MD5

ffffef086ca3963100c82add4a0d1f65
SHA1

041be8e3f3962fa1c9f0907fa4b5729d7365dbca
SHA256

037c931944896acda035e2392520d58f029c467747bb8ee3b3c2f4bc40707f25
SHA512

7781b296847c348290e6109891e9438974e3f5974df45584df96f86d720a7ee3843766febfb4931dcb1cd4205310504c23d2b1e757a49a61854a98963151cbfb
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556BlH:X6QFElP6n+gJQMOtEvwDpjB0GIWSlH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012236-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012236-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2916	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2016	2024-03-06_ffffef086ca3963100c82add4a0d1f65_cryptolocker.exe

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 2016 wrote to memory of 2916	2016	2024-03-06_ffffef086ca3963100c82add4a0d1f65_cryptolocker.exe	28
PID 2016 wrote to memory of 2916	2016	2024-03-06_ffffef086ca3963100c82add4a0d1f65_cryptolocker.exe	28
PID 2016 wrote to memory of 2916	2016	2024-03-06_ffffef086ca3963100c82add4a0d1f65_cryptolocker.exe	28
PID 2016 wrote to memory of 2916	2016	2024-03-06_ffffef086ca3963100c82add4a0d1f65_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_ffffef086ca3963100c82add4a0d1f65_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_ffffef086ca3963100c82add4a0d1f65_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2916

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
47KB

MD5
b16b0f850a25319bb572746971b295e8

SHA1
286fa7beebaccb88781abc68a50c4077dae3c343

SHA256
08e38955e52d2f9e64052b7a9f20659b4631e932e70af1629eba3fb5c1fc4ac6

SHA512
29de74287e93dc91ff747c77900d4a20b675636752f928ec982fca88c46157a4b80bbc2845f6a6dbf2d197028c03d0fe9d5024de5ebc8b73ac5dcd2a0d2c454a

Download Submit
memory/2016-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2016-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2016-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2916-15-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2916-22-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download