96b04067bdd1410cf1cd39374861ca91642de1fd47e0c62ae978f9d53edb205b

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/04/2024, 23:27

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General

Target

2024-04-24_92bf2f771ee08f6becfa59c76deb1714_cryptolocker.exe
Size

39KB
MD5

92bf2f771ee08f6becfa59c76deb1714
SHA1

c07bd21b60924f6b105c955c4a38f8149eb0e1fa
SHA256

96b04067bdd1410cf1cd39374861ca91642de1fd47e0c62ae978f9d53edb205b
SHA512

33073e653159a3e67db74ce9855cc497f61f6d0eee01499d9418bbed79333dea853af24da9a285e8ba9ab8ba141da43ca57de4dd1843dc82048545625ec4af77
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkLNWZ:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkL4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2088-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012251-11.dat	CryptoLocker_rule2
behavioral1/memory/2088-13-0x00000000004D0000-0x00000000004DB000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2088-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2192-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2088-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012251-11.dat	CryptoLocker_set1
behavioral1/memory/2088-13-0x00000000004D0000-0x00000000004DB000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2088-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2192-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2192	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2088	2024-04-24_92bf2f771ee08f6becfa59c76deb1714_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 2088 wrote to memory of 2192	2088	2024-04-24_92bf2f771ee08f6becfa59c76deb1714_cryptolocker.exe	28
PID 2088 wrote to memory of 2192	2088	2024-04-24_92bf2f771ee08f6becfa59c76deb1714_cryptolocker.exe	28
PID 2088 wrote to memory of 2192	2088	2024-04-24_92bf2f771ee08f6becfa59c76deb1714_cryptolocker.exe	28
PID 2088 wrote to memory of 2192	2088	2024-04-24_92bf2f771ee08f6becfa59c76deb1714_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-24_92bf2f771ee08f6becfa59c76deb1714_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_92bf2f771ee08f6becfa59c76deb1714_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2192

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
40KB

MD5
7942f64fa546cb2bbfed12221f329b1e

SHA1
ebe4c8c123dafb016aebbbc79ea26b4c4da127be

SHA256
db21ee1e6d066dc84343e45bc9959ba813778c413c847fbf709a4100b5d71599

SHA512
f455408b154f35b05d049869ccc816a3e52f1a5936db8a8c24c0d0cf853cce1b79ed48f1af9d72fb3c1eea3f3c704aa53e736f39b6591b2aa5c27e72e5f1a9a2

Download Submit
memory/2088-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2088-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2088-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2088-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2088-13-0x00000000004D0000-0x00000000004DB000-memory.dmp

Filesize
44KB

Download
memory/2088-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2192-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2192-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2192-24-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download