dc2cf4b1062c0dea3d5023224b704358a0b2ccc27b76f84b955102a68792d95e

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/01/2024, 00:36

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General

Target

2024-01-26_82b26f80ff506445b1f6b96fcdc87208_cryptolocker.exe
Size

35KB
MD5

82b26f80ff506445b1f6b96fcdc87208
SHA1

986bd08249fa94a46113de815b4d8312358044d5
SHA256

dc2cf4b1062c0dea3d5023224b704358a0b2ccc27b76f84b955102a68792d95e
SHA512

b687e417767037bcc3271117cfc76dfa7cc0eae67938bec3c3fdbe7e2232cecef6c45ef008e536843d19893db1979f2b37a1f174a7a14cd980107f200f5abbf1
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkLu:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2520-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x00090000000122c9-11.dat	CryptoLocker_rule2
behavioral1/memory/2520-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2520-13-0x0000000000600000-0x000000000060B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2520-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x00090000000122c9-11.dat	CryptoLocker_set1
behavioral1/memory/2520-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2520-13-0x0000000000600000-0x000000000060B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2268	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2520	2024-01-26_82b26f80ff506445b1f6b96fcdc87208_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 2520 wrote to memory of 2268	2520	2024-01-26_82b26f80ff506445b1f6b96fcdc87208_cryptolocker.exe	28
PID 2520 wrote to memory of 2268	2520	2024-01-26_82b26f80ff506445b1f6b96fcdc87208_cryptolocker.exe	28
PID 2520 wrote to memory of 2268	2520	2024-01-26_82b26f80ff506445b1f6b96fcdc87208_cryptolocker.exe	28
PID 2520 wrote to memory of 2268	2520	2024-01-26_82b26f80ff506445b1f6b96fcdc87208_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-26_82b26f80ff506445b1f6b96fcdc87208_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_82b26f80ff506445b1f6b96fcdc87208_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2268

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
36KB

MD5
22dc8278cd762af1cf213cff0cf4981b

SHA1
d2d2c2f4c84877ecdba883b0a6529bb3d3da5164

SHA256
4f19630f7a3b917e48fa792de707b3de1cbedfa631c2198e7661aa7a38d889c3

SHA512
1f36318f3d18c7d3fd184e501767ac41ea83e27682f85b9ae707fcf9389bf52dd3f15b682def68469111d065564b16a1a06120e7ffbe7f2c10775dacb654e0a0

Download Submit
memory/2268-18-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2268-20-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2520-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2520-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2520-9-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2520-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2520-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2520-13-0x0000000000600000-0x000000000060B000-memory.dmp

Filesize
44KB

Download