6afb7a2388d9c1b1c55f6e62446c0999e7529cfc2e09b04fb55e0bb591e19e7f

Analysis

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

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
22/05/2024, 19:31

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General

Target

202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe
Size

40KB
MD5

2861095e3a9deecd5d1e5d034a957a24
SHA1

93a90a26331f27c2fcd0574645d8d5ac60981267
SHA256

6afb7a2388d9c1b1c55f6e62446c0999e7529cfc2e09b04fb55e0bb591e19e7f
SHA512

1518545e556087555f80d959860a4fe412fb2550afda67e2ebdf8de3844460c26df6c5f9c92b44372360ddf8a2e839b7a96cffff01d81f6eb19f64ca430e61ea
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYoq:qDdFJy3QMOtEvwDpjjWMl7Tlq

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2748	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1340	202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1340-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000b0000000122ee-11.dat	upx
behavioral1/memory/1340-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2748-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2748-27-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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 1340 wrote to memory of 2748	1340	202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe	28
PID 1340 wrote to memory of 2748	1340	202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe	28
PID 1340 wrote to memory of 2748	1340	202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe	28
PID 1340 wrote to memory of 2748	1340	202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\202405222861095e3a9deecd5d1e5d034a957a24cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1340
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2748

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
40KB

MD5
897e7dd3db4b411593e1b373edcf192e

SHA1
e21726f08b8613010d93b214f1538a61e6a8a32d

SHA256
2245df00585422f1324957cc8f624556d2cfe798582989efd283edfc4572eaa5

SHA512
a4c8d6a49c094cd045e0a31a785445fa39d778d85a9deb725cb3e252ba5905d8805c67293fec158ba82bd2bc50b5be1552fd230285697c8d029f88f5510ff537

Download Submit
memory/1340-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1340-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1340-2-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/1340-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1340-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2748-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2748-26-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2748-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2748-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download