0720e0c3b957cddfe90a4385d33af06388fd747cffbbe4f739fc34a0bf9440cf

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
18-03-2024 13:53

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General

Target

2024-03-18_d09d0e45a9e61834d01a0409f2be3307_cryptolocker.exe
Size

128KB
MD5

d09d0e45a9e61834d01a0409f2be3307
SHA1

c423a7ee0e0ed507a7249946df14a203e5f5b6f3
SHA256

0720e0c3b957cddfe90a4385d33af06388fd747cffbbe4f739fc34a0bf9440cf
SHA512

54fc1518e5f35b9c5f7303586d366ba5f8133620efa0970c644dc70caff9204c02370c70296f3847fbbea32eb02dd4429586f760a2eb7ebc9322af3f737bbc5e
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwNgpwbau:u6a++OtEvwDpj6zV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012241-22.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012241-22.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2960	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1048	2024-03-18_d09d0e45a9e61834d01a0409f2be3307_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 1048 wrote to memory of 2960	1048	2024-03-18_d09d0e45a9e61834d01a0409f2be3307_cryptolocker.exe	28
PID 1048 wrote to memory of 2960	1048	2024-03-18_d09d0e45a9e61834d01a0409f2be3307_cryptolocker.exe	28
PID 1048 wrote to memory of 2960	1048	2024-03-18_d09d0e45a9e61834d01a0409f2be3307_cryptolocker.exe	28
PID 1048 wrote to memory of 2960	1048	2024-03-18_d09d0e45a9e61834d01a0409f2be3307_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-18_d09d0e45a9e61834d01a0409f2be3307_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_d09d0e45a9e61834d01a0409f2be3307_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2960

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
129KB

MD5
f01b5c808498f28a2634ad4b893ab9b3

SHA1
504d5da953af33d61504b3b312aab77b52efa7c1

SHA256
3d22607e8b94fdf164ce566202dca77b1baa0dacca10c8d68c997467d798194f

SHA512
77c6fd451ec65a3e5df600c8106c8babdc2564addfe61ee7d23e90e4e4c13e65a25539ddfed6f39e4dcbfe9c4e64e2a92fddb45856d4bc3368f0f1da069e5b4a

Download Submit
memory/1048-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1048-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1048-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2960-19-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2960-15-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download