635332b5776d3dee2639dd9147956837fbbfed24c719ba7b833e26811e5af4e3

Analysis

max time kernel
149s
max time network
156s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03-06-2024 02:26

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General

Target

2024-06-03_3f958d41e379cfb3b0f4ec4c998fd6f3_cryptolocker.exe
Size

50KB
MD5

3f958d41e379cfb3b0f4ec4c998fd6f3
SHA1

08518143d4e3b6a826506cb7bf7224af00ba5fee
SHA256

635332b5776d3dee2639dd9147956837fbbfed24c719ba7b833e26811e5af4e3
SHA512

508bc58575714989760b5a1900c6808b9c5b341da8d22dcd40ccc91747fe7e545dd52b4b420950f3592d82dd71867d16d7fe987d2386379fc8c3d382bb84a5d1
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vdXfn4:X6QFElP6n+gJBMOtEvwDpjBtEdXfn4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001445e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001445e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2908	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2492	2024-06-03_3f958d41e379cfb3b0f4ec4c998fd6f3_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 2492 wrote to memory of 2908	2492	2024-06-03_3f958d41e379cfb3b0f4ec4c998fd6f3_cryptolocker.exe	28
PID 2492 wrote to memory of 2908	2492	2024-06-03_3f958d41e379cfb3b0f4ec4c998fd6f3_cryptolocker.exe	28
PID 2492 wrote to memory of 2908	2492	2024-06-03_3f958d41e379cfb3b0f4ec4c998fd6f3_cryptolocker.exe	28
PID 2492 wrote to memory of 2908	2492	2024-06-03_3f958d41e379cfb3b0f4ec4c998fd6f3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-03_3f958d41e379cfb3b0f4ec4c998fd6f3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_3f958d41e379cfb3b0f4ec4c998fd6f3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2908

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
50KB

MD5
73fa6b3db6ea6d3ff3dd225e423cd962

SHA1
de1b2dea8d9cbbaada0db2e694b8104b683835d0

SHA256
133d9f98b5984ef11186346150e344c6305400ea07cb2d9b82afc2b3861e1705

SHA512
e93b0d92d8fe5889608d972bfd5250db020281557649f90f96ed9d460c2c4d6a80989c3821161d3c1162cc93f39214bd5e15ff3603de7f63354cd0c437e15ae1

Download Submit
memory/2492-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2492-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2492-7-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2908-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2908-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download