f1688e4e262a399638430e93c37774014153584271719b21d6407aa23300e3d3

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
29-04-2024 04:45

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General

Target

2024-04-29_b166956dbfb99f2f0437503bb48dc382_cryptolocker.exe
Size

46KB
MD5

b166956dbfb99f2f0437503bb48dc382
SHA1

c33825f6041ae3ab7b32671b797db2e9fc22d382
SHA256

f1688e4e262a399638430e93c37774014153584271719b21d6407aa23300e3d3
SHA512

b2b7ff546b2f9af4f97c536b12f07cfed89641ccb39bf18ce64d242ea63b79fde512d50b021aa3deb3c0c58a5e118410adb022c1f8e3db46e0da5efbea209b4f
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/Dpkr:P6Q0ElP6G+gJQMOtEvwDpjB8WMl4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/992-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012279-13.dat	CryptoLocker_rule2
behavioral1/memory/992-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2116-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/992-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012279-13.dat	CryptoLocker_set1
behavioral1/memory/992-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2116-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2116	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
992	2024-04-29_b166956dbfb99f2f0437503bb48dc382_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 992 wrote to memory of 2116	992	2024-04-29_b166956dbfb99f2f0437503bb48dc382_cryptolocker.exe	28
PID 992 wrote to memory of 2116	992	2024-04-29_b166956dbfb99f2f0437503bb48dc382_cryptolocker.exe	28
PID 992 wrote to memory of 2116	992	2024-04-29_b166956dbfb99f2f0437503bb48dc382_cryptolocker.exe	28
PID 992 wrote to memory of 2116	992	2024-04-29_b166956dbfb99f2f0437503bb48dc382_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-29_b166956dbfb99f2f0437503bb48dc382_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-29_b166956dbfb99f2f0437503bb48dc382_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:992
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2116

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
46KB

MD5
14e86fad975b0eb0144e310e7e92a1e2

SHA1
90a610b27bdcceaba4e843b3c0106382d18268e4

SHA256
8eb7f681a01dc44d2d2dc7e48deaf32856f1536fb4e53a4ab656a4165d2bdb40

SHA512
0fee274c27e7709a0ea230d3efdf17f63f9311aabae124ae3e6645caa0e39c59e09fc261e696fd8a5ccf8b2e2a7928a125c7f547a40c104188e1e0d612c945c2

Download Submit
memory/992-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/992-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/992-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/992-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/992-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/992-15-0x0000000000640000-0x000000000064B000-memory.dmp

Filesize
44KB

Download
memory/2116-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2116-18-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2116-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download