57e9b55d7a0abebc37b79430fcce26e6fab6330e682aa0484d01778de68a0a12

Analysis

max time kernel
150s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
11/03/2024, 15:33

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General

Target

2024-03-11_278191255a3bc2c008c108c8a4aefaf7_cryptolocker.exe
Size

46KB
MD5

278191255a3bc2c008c108c8a4aefaf7
SHA1

5d3800cea1a85a53e87ab770643138d7789710fb
SHA256

57e9b55d7a0abebc37b79430fcce26e6fab6330e682aa0484d01778de68a0a12
SHA512

e2a58c1c19bd3a33f81deb43de0eda0550dd36976289fbcdcd67b6364deeffae6fc6af93c60ba85c90a5f263c13bfaec0b034b75e31234eaad3da4132d14604c
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3KxR:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015c9a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015c9a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2156	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2088	2024-03-11_278191255a3bc2c008c108c8a4aefaf7_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2088	2024-03-11_278191255a3bc2c008c108c8a4aefaf7_cryptolocker.exe
2156	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 2156	2088	2024-03-11_278191255a3bc2c008c108c8a4aefaf7_cryptolocker.exe	28
PID 2088 wrote to memory of 2156	2088	2024-03-11_278191255a3bc2c008c108c8a4aefaf7_cryptolocker.exe	28
PID 2088 wrote to memory of 2156	2088	2024-03-11_278191255a3bc2c008c108c8a4aefaf7_cryptolocker.exe	28
PID 2088 wrote to memory of 2156	2088	2024-03-11_278191255a3bc2c008c108c8a4aefaf7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-11_278191255a3bc2c008c108c8a4aefaf7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_278191255a3bc2c008c108c8a4aefaf7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2156

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\hurok.exe

Filesize
46KB

MD5
0c488aaf8ba911137b3014861a605d5c

SHA1
f7595338eb00cd4f0209e2f90d299300cd268aba

SHA256
653ffd1cee8f7fe21f491630014266dede1e0f3262264c725a694f4f9df03798

SHA512
5a5dde3759acd5f5808b95a66745b38a8c00cc4ab43c050b111cc3c3e6371a6e4d9b482235942c2e502f0f20587069e2bb9d4b6100662a063fca81a1989d54f1

Download Submit
memory/2088-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2088-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2088-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2156-20-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download