22130f0d78db7ef7eace8958d55976c8a76787326ee9d74578c506b63563497a

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28/01/2024, 07:25

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General

Target

2024-01-28_1bb242aa23c4ad33497abca9ffabfc95_cryptolocker.exe
Size

47KB
MD5

1bb242aa23c4ad33497abca9ffabfc95
SHA1

123272b0b63aed8802f32051ea33093fc3c350c3
SHA256

22130f0d78db7ef7eace8958d55976c8a76787326ee9d74578c506b63563497a
SHA512

52032e23a56ae8696b0a4354ce8424c99f3414ccfd775793d8236207f403042d0db48bd6b31e217c9589fc3fbdc2c9b039b54c1a023d6053445efabbf00fd4d0
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPxyV4tFgF:bIDOw9a0Dwo3P1ojvUSD4PRtFgF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001223b-21.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2704	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2864	2024-01-28_1bb242aa23c4ad33497abca9ffabfc95_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 2864 wrote to memory of 2704	2864	2024-01-28_1bb242aa23c4ad33497abca9ffabfc95_cryptolocker.exe	1
PID 2864 wrote to memory of 2704	2864	2024-01-28_1bb242aa23c4ad33497abca9ffabfc95_cryptolocker.exe	1
PID 2864 wrote to memory of 2704	2864	2024-01-28_1bb242aa23c4ad33497abca9ffabfc95_cryptolocker.exe	1
PID 2864 wrote to memory of 2704	2864	2024-01-28_1bb242aa23c4ad33497abca9ffabfc95_cryptolocker.exe	1

C:\Users\Admin\AppData\Local\Temp\lossy.exe
"C:\Users\Admin\AppData\Local\Temp\lossy.exe"
1⤵
- Executes dropped EXE
PID:2704

C:\Users\Admin\AppData\Local\Temp\2024-01-28_1bb242aa23c4ad33497abca9ffabfc95_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_1bb242aa23c4ad33497abca9ffabfc95_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2864

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\lossy.exe

Filesize
47KB

MD5
eb4a29e03a1d41f4cf5ce5d5c5ed6a5a

SHA1
4ee62769a69c3c64c6c342108c8e951e39cb3cdb

SHA256
835e47632bdb13e0afbc87c2810e2b36d225114d1f2ae313c335c85dbdb7444f

SHA512
bfeaedab7fc5bc082b313777fe03160ce22b4d277e02531e0c59ed008a909f4c2468528133d88202ed24869ca75640e0d6d1586c60f7c00aea75b4b61d47ebec

Download Submit
memory/2704-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2864-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2864-1-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/2864-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download