25917ff8d4560910b05d9f60876744d418bec40fcd62a4c98624fe785e851c7b

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
22-02-2024 06:55

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General

Target

2024-02-22_e46d1e525f79f8dd4c21fc660375f940_cryptolocker.exe
Size

82KB
MD5

e46d1e525f79f8dd4c21fc660375f940
SHA1

4c36a2d8979cab0c09a85ac3d72c2f4ed0d2417b
SHA256

25917ff8d4560910b05d9f60876744d418bec40fcd62a4c98624fe785e851c7b
SHA512

3b5fbdca032940b00f64ff930c5a5e526783709b01a20c2c0c9297f8caf2f4ab7f557917d4e35b4156aba13fed127d403d0d3850813065068bafec503bf3ea46
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNlVSLX:V6a+pOtEvwDpjvp+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000013ab9-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000013ab9-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1032	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2932	2024-02-22_e46d1e525f79f8dd4c21fc660375f940_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 2932 wrote to memory of 1032	2932	2024-02-22_e46d1e525f79f8dd4c21fc660375f940_cryptolocker.exe	28
PID 2932 wrote to memory of 1032	2932	2024-02-22_e46d1e525f79f8dd4c21fc660375f940_cryptolocker.exe	28
PID 2932 wrote to memory of 1032	2932	2024-02-22_e46d1e525f79f8dd4c21fc660375f940_cryptolocker.exe	28
PID 2932 wrote to memory of 1032	2932	2024-02-22_e46d1e525f79f8dd4c21fc660375f940_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_e46d1e525f79f8dd4c21fc660375f940_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_e46d1e525f79f8dd4c21fc660375f940_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1032

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
83KB

MD5
be4f634d771cc1a4931c113ce7494747

SHA1
13ac511fd442a1630c6897d3f53ebd1741e4b0e8

SHA256
d1ab0c0a635837461f06b4fa784955352123e2b1802ee58c4413390261d67ca7

SHA512
d4b50d56563ba0cbd4656f083fcae63f3a2a9f0b37bb9eebadffbac27495f24f62a4d8ec6e70edbf69bf53f279341c9fe81cd74fb849ec3ed0e8df8c8f437828

Download Submit
memory/1032-15-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/1032-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2932-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2932-2-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2932-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download