3c072936810eb1bf23f2213f12c99ca885ca55a0ded271962bd99db701305480

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27-02-2024 22:34

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General

Target

2024-02-27_c9c305e1b9b42f94d9d23d7321c8ca0d_cryptolocker.exe
Size

148KB
MD5

c9c305e1b9b42f94d9d23d7321c8ca0d
SHA1

14623d09a09b8198a22599493796a7fb42612383
SHA256

3c072936810eb1bf23f2213f12c99ca885ca55a0ded271962bd99db701305480
SHA512

7512ff8c107de11492f25e76839e9dc52ea807c7ef4d8e78bddc4573711ab12e4d916af0a181e0c61cc3c5fb412ed9d06e8677f343bdc1bd609812c649a65b0f
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbxGYQbxGYQbPlooHPPFl:V6a+pOtEvwDpjt22h

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012240-10.dat	CryptoLocker_rule2
behavioral1/files/0x000c000000012240-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012240-10.dat	CryptoLocker_set1
behavioral1/files/0x000c000000012240-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2900	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1500	2024-02-27_c9c305e1b9b42f94d9d23d7321c8ca0d_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 1500 wrote to memory of 2900	1500	2024-02-27_c9c305e1b9b42f94d9d23d7321c8ca0d_cryptolocker.exe	28
PID 1500 wrote to memory of 2900	1500	2024-02-27_c9c305e1b9b42f94d9d23d7321c8ca0d_cryptolocker.exe	28
PID 1500 wrote to memory of 2900	1500	2024-02-27_c9c305e1b9b42f94d9d23d7321c8ca0d_cryptolocker.exe	28
PID 1500 wrote to memory of 2900	1500	2024-02-27_c9c305e1b9b42f94d9d23d7321c8ca0d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-27_c9c305e1b9b42f94d9d23d7321c8ca0d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-27_c9c305e1b9b42f94d9d23d7321c8ca0d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2900

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
130KB

MD5
7f739ed7e4d43e107a9a7ef8be43d1f0

SHA1
1a9e02643e484dc9b14ecddf36744cd729bd4673

SHA256
041a5158c5f3db8ce647c719551c1d69174252277fd807ec7b6aea9b5fa49d31

SHA512
e8513da0bdf4122200a57e5f7ed2ed1074d282dbdf0d57f60db54109ac7fb646a77aeb6b8a1dc461d7b3990dd28928403b9d1f9da06f7b8b8022795f4c8a2655

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

Filesize
148KB

MD5
8c6a236462bd999645958f81d30e56bc

SHA1
f0578bcaa2b79f4c3df3cc606ad273cbeb08ac17

SHA256
271ae5a06c34da555f29c35eb9877a76602fd8c457cbe3adf44c81b6f20e06f1

SHA512
ac52d2f01692476aaf132e370a18dc2230053bdc91201da6ad53f9dc62c74ad6a5a450ce457f001228806c47ea44d8bf8d470a1b242ea4ee75bc0275369a7d4d

Download Submit
memory/1500-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1500-1-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/1500-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2900-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2900-16-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download