70507ecf67dd7d07649eaeedca7fe5794624dbcad0e937de8cfeba45234d3674

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01-05-2024 06:34

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General

Target

2024-05-01_bf94d17bee81d14b035f884eca86b0a7_cryptolocker.exe
Size

47KB
MD5

bf94d17bee81d14b035f884eca86b0a7
SHA1

b36df4b7324bd0543d56b266ab9fe9f06520d478
SHA256

70507ecf67dd7d07649eaeedca7fe5794624dbcad0e937de8cfeba45234d3674
SHA512

8a254e32633acfad41caab4191bb14baa3d0ee2686ec4158646832887d6ebba3b550a4718032d48e2892cd08644498b179353d66542d1f07ef0a2856472813cb
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/DpkcF:P6Q0ElP6G+gJQMOtEvwDpjB8WMlfF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2400-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000f000000012334-11.dat	CryptoLocker_rule2
behavioral1/memory/2400-13-0x0000000000690000-0x000000000069B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2400-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3032-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2400-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000f000000012334-11.dat	CryptoLocker_set1
behavioral1/memory/2400-13-0x0000000000690000-0x000000000069B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2400-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3032-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3032	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2400	2024-05-01_bf94d17bee81d14b035f884eca86b0a7_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 2400 wrote to memory of 3032	2400	2024-05-01_bf94d17bee81d14b035f884eca86b0a7_cryptolocker.exe	28
PID 2400 wrote to memory of 3032	2400	2024-05-01_bf94d17bee81d14b035f884eca86b0a7_cryptolocker.exe	28
PID 2400 wrote to memory of 3032	2400	2024-05-01_bf94d17bee81d14b035f884eca86b0a7_cryptolocker.exe	28
PID 2400 wrote to memory of 3032	2400	2024-05-01_bf94d17bee81d14b035f884eca86b0a7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-01_bf94d17bee81d14b035f884eca86b0a7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_bf94d17bee81d14b035f884eca86b0a7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3032

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
47KB

MD5
a95e353d3b9849812df6df231d8f4fbe

SHA1
10a7bde0d13a5fbd964b957998c1cd9f27251e6a

SHA256
29200d7a140b2c34c9ab042bdf45375597c891385e3b2b06a956c648fde8fd6d

SHA512
f250a71bb0c961a3775e3668d7234fc745806239d36d5ea7d8a65ecf13cfc1b10e6a5e13dfb53f5085de47048df7c86b97418129137e72382bdea080acc582e1

Download Submit
memory/2400-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2400-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2400-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2400-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2400-13-0x0000000000690000-0x000000000069B000-memory.dmp

Filesize
44KB

Download
memory/2400-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3032-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/3032-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3032-25-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download