a010d7fb8d84e8e5448ff10d561845d487ae1b0210bfe90de17aa5056a6cb349

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
21-02-2024 13:25

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General

Target

2024-02-21_178e818d6224f801f37204386b56825f_cryptolocker.exe
Size

31KB
MD5

178e818d6224f801f37204386b56825f
SHA1

3c2d80a0fb4c5f8b1b170e2f892e7bfd21054636
SHA256

a010d7fb8d84e8e5448ff10d561845d487ae1b0210bfe90de17aa5056a6cb349
SHA512

67654c9178d2f9947755d79aebf2a65ab8500c9a55ba074603a7124d490ca43eeac1e6305d4a4459e279ee35cb5cd2a29ae993d00307738e8761e6ca480bb131
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9R0a2yqA:b7o/2n1TCraU6GD1a4Xt9R0a7qA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012331-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2736	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2008	2024-02-21_178e818d6224f801f37204386b56825f_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
2008	2024-02-21_178e818d6224f801f37204386b56825f_cryptolocker.exe
2736	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 2736	2008	2024-02-21_178e818d6224f801f37204386b56825f_cryptolocker.exe	28
PID 2008 wrote to memory of 2736	2008	2024-02-21_178e818d6224f801f37204386b56825f_cryptolocker.exe	28
PID 2008 wrote to memory of 2736	2008	2024-02-21_178e818d6224f801f37204386b56825f_cryptolocker.exe	28
PID 2008 wrote to memory of 2736	2008	2024-02-21_178e818d6224f801f37204386b56825f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_178e818d6224f801f37204386b56825f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_178e818d6224f801f37204386b56825f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2008
- 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:2736

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
31KB

MD5
e52ebf445b592104b91cb462413fbd53

SHA1
4a7c3bdd1e6c71e303fe8e4472ef14a8ef9a5f50

SHA256
a5efb5198c5362712a84e3d4f23da97ccd814a4169aff49e3d06fa68a4058ba1

SHA512
cc3d8c909ac16311722dffa2902bca3f850d0504d9e7e983bd99128170ecd4d86ec8e7823ae4886c2b9a4d6f7c17e2bc3b276984e3f5b66236aaf2db82a6cf90

Download Submit
memory/2008-0-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2008-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2008-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2736-20-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download