01c13bedb382339529f475d4ec5f2b38293d43c273d57a5f14587414c9583063

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/02/2024, 10:02

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General

Target

2024-02-18_c18996d56c54b7785191e10dc6e18d99_cryptolocker.exe
Size

54KB
MD5

c18996d56c54b7785191e10dc6e18d99
SHA1

d76f5aaa5d3ea9c5f7a8c5adee4ad9ff83b84b7c
SHA256

01c13bedb382339529f475d4ec5f2b38293d43c273d57a5f14587414c9583063
SHA512

8e0f038709b674f5cd560674c20a09e2b4b7bf41433b1e2f100996ee9d3857b485c15e471e285742b40a04da9f6fc272760972fc4ac22d60c1fc4a0e7eec8a37
SSDEEP

1536:X6QFElP6n+gJBMOtEvwDpjBtE1yILJ0wy:X6a+BOtEvwDpjBOG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012281-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012281-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2888	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1956	2024-02-18_c18996d56c54b7785191e10dc6e18d99_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 1956 wrote to memory of 2888	1956	2024-02-18_c18996d56c54b7785191e10dc6e18d99_cryptolocker.exe	28
PID 1956 wrote to memory of 2888	1956	2024-02-18_c18996d56c54b7785191e10dc6e18d99_cryptolocker.exe	28
PID 1956 wrote to memory of 2888	1956	2024-02-18_c18996d56c54b7785191e10dc6e18d99_cryptolocker.exe	28
PID 1956 wrote to memory of 2888	1956	2024-02-18_c18996d56c54b7785191e10dc6e18d99_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_c18996d56c54b7785191e10dc6e18d99_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_c18996d56c54b7785191e10dc6e18d99_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2888

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
54KB

MD5
45e6d360468ec2f88804f9047fad28c7

SHA1
8c7910c92748b745b1a9466080de86b7af7e6df1

SHA256
30f2d3b5a2cb213bcbaf26a4dac24b7bf6a5c663c640d747728abb6d2b56871b

SHA512
ca533accbd9331d42d6b4a73c519b62d4b447e7dbd351db0e78cf6372923e1bbfc5a7aaf10974dfbc35a2d47c1a92a1d4513433c69eb85e5297b193057459843

Download Submit
memory/1956-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1956-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/1956-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2888-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2888-18-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download