dc97a34242e7a1eb9b9ed6949f490a48df224d00f44c1320b22b0119d19d870b

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 02:44

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General

Target

2024-03-08_6e16a031d72220ac6e8367faba864ff8_cryptolocker.exe
Size

81KB
MD5

6e16a031d72220ac6e8367faba864ff8
SHA1

7f16fb5d35bace68e2ff6549a8a5cd695d614659
SHA256

dc97a34242e7a1eb9b9ed6949f490a48df224d00f44c1320b22b0119d19d870b
SHA512

648d9e92f4c1698d1eb4376e4001d3f5fdc9f52cd6dfb8b91c68bcbe0efc2abe2f49cd4a905ffa105064095a3cbe98d2fcc0f86b78c6198ce1033852ab67ef6d
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMruK:TCjsIOtEvwDpj5HE/OUHnSMp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2456-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0008000000012262-11.dat	CryptoLocker_rule2
behavioral1/memory/2456-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2516-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2516-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2456-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0008000000012262-11.dat	CryptoLocker_set1
behavioral1/memory/2456-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2516-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2516-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2516	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2456	2024-03-08_6e16a031d72220ac6e8367faba864ff8_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 2456 wrote to memory of 2516	2456	2024-03-08_6e16a031d72220ac6e8367faba864ff8_cryptolocker.exe	28
PID 2456 wrote to memory of 2516	2456	2024-03-08_6e16a031d72220ac6e8367faba864ff8_cryptolocker.exe	28
PID 2456 wrote to memory of 2516	2456	2024-03-08_6e16a031d72220ac6e8367faba864ff8_cryptolocker.exe	28
PID 2456 wrote to memory of 2516	2456	2024-03-08_6e16a031d72220ac6e8367faba864ff8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_6e16a031d72220ac6e8367faba864ff8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_6e16a031d72220ac6e8367faba864ff8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2516

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\misid.exe

Filesize
81KB

MD5
856c227c9b0bd5173eb51cf5d6b5207c

SHA1
1a27f7999411b31f3261caa48cdc4a768168fda9

SHA256
37bfde39ba22d1f5d5556a02b2031b3585faebe46781769bab5b10e3378fe766

SHA512
e9105de5211eb5aa341b08380abf7b8520c26096e742d897ef71136d5b91dccf15e13a887866cfe4b410428feb37f1b83b22d7b98b9e2c4ec16331da614b867e

Download Submit
memory/2456-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2456-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2456-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2456-4-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2456-14-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2516-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2516-19-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2516-18-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2516-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download