72e30c5180d76d5395562fb99fdba4a60c07f2de7f452e35bdbbe65f3c45964b

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 13:42

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General

Target

2024-02-22_45606eb26109822afd64b2502f823ce4_cryptolocker.exe
Size

32KB
MD5

45606eb26109822afd64b2502f823ce4
SHA1

ccc1c9465907b4d13e17c915cd20410210045795
SHA256

72e30c5180d76d5395562fb99fdba4a60c07f2de7f452e35bdbbe65f3c45964b
SHA512

5e08a17ab69d941bf67ea26be104f39fee6420e5db89eefd984719b0865a3741e3c425615bee9c1384c5d3d5741800946e7907c8c45ea58887745e9f659c24cc
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B+OOR8X:b7o/2n1TCraU6GD1a4Xt9hO8X

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012264-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2532	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
1348	2024-02-22_45606eb26109822afd64b2502f823ce4_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
1348	2024-02-22_45606eb26109822afd64b2502f823ce4_cryptolocker.exe
2532	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1348 wrote to memory of 2532	1348	2024-02-22_45606eb26109822afd64b2502f823ce4_cryptolocker.exe	28
PID 1348 wrote to memory of 2532	1348	2024-02-22_45606eb26109822afd64b2502f823ce4_cryptolocker.exe	28
PID 1348 wrote to memory of 2532	1348	2024-02-22_45606eb26109822afd64b2502f823ce4_cryptolocker.exe	28
PID 1348 wrote to memory of 2532	1348	2024-02-22_45606eb26109822afd64b2502f823ce4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_45606eb26109822afd64b2502f823ce4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_45606eb26109822afd64b2502f823ce4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1348
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2532

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\rewok.exe

Filesize
32KB

MD5
e9de2e706c7ac8342a05a50ab6c9d29f

SHA1
e8289aac5e80030003d3488484dfc5b0f952859c

SHA256
08cf13cfc8df2741f07099f91c6d7d7b638119e4c5e472abb4fc546e5556d17d

SHA512
3b8a432c6849e63807ef2d5cee02eab9f24ed50cec63431c4fb6ee244544f15302b88fda988c7bd7741bf0dcd2e83287f2b46c0b1edf16f9f819e05b8cac8813

Download Submit
memory/1348-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/1348-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1348-1-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2532-23-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download