a54c7881fb9dc538f52eed7f7ba52ca30261ff7b78774372c89d36eb2d2a3032

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
01-08-2023 14:35

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General

Target

2782a9c58b9e6a6154fd68d2749b08dd_cryptolocker_JC.exe
Size

39KB
MD5

2782a9c58b9e6a6154fd68d2749b08dd
SHA1

c037f663e67c8b7afe68f1db4fed47173154ae42
SHA256

a54c7881fb9dc538f52eed7f7ba52ca30261ff7b78774372c89d36eb2d2a3032
SHA512

f243a844c51dfb02782377cc9bf654994700851b6e0a800804038bb587aa21c664ca5a7728f034c47481df284f00913d57c6a8eeccc776f9c371face3c4f40c6
SSDEEP

768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5aFr7YOzzOX:qUmnpomddpMOtEvwDpjjaYaFAH

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4908	asih.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2564-133-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0006000000023206-146.dat	upx
behavioral2/files/0x0006000000023206-148.dat	upx
behavioral2/memory/2564-150-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0006000000023206-149.dat	upx
behavioral2/memory/4908-159-0x0000000000500000-0x000000000050F000-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 3 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 4908	2564	2782a9c58b9e6a6154fd68d2749b08dd_cryptolocker_JC.exe	87
PID 2564 wrote to memory of 4908	2564	2782a9c58b9e6a6154fd68d2749b08dd_cryptolocker_JC.exe	87
PID 2564 wrote to memory of 4908	2564	2782a9c58b9e6a6154fd68d2749b08dd_cryptolocker_JC.exe	87

C:\Users\Admin\AppData\Local\Temp\2782a9c58b9e6a6154fd68d2749b08dd_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2782a9c58b9e6a6154fd68d2749b08dd_cryptolocker_JC.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2564
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4908

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\asih.exe

Filesize
39KB

MD5
81c68017f09e9fe1cf2d6fb17f3bcf93

SHA1
8732ac5bf5746a5c9e89994e36dc9c3a750306d7

SHA256
c0a9b167da7b6aeb53b3ab5cee5a143c0637f7842e0f165e2733bad8be27cb95

SHA512
2a840656a16bcd13692af13ca38f3f2286a2c978a1005dffa4c057ef49d2d66c709aed233052175d8f9ee5295df2d2cf876b72607f3b25ef82b2658647c67719

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
39KB

MD5
81c68017f09e9fe1cf2d6fb17f3bcf93

SHA1
8732ac5bf5746a5c9e89994e36dc9c3a750306d7

SHA256
c0a9b167da7b6aeb53b3ab5cee5a143c0637f7842e0f165e2733bad8be27cb95

SHA512
2a840656a16bcd13692af13ca38f3f2286a2c978a1005dffa4c057ef49d2d66c709aed233052175d8f9ee5295df2d2cf876b72607f3b25ef82b2658647c67719

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
39KB

MD5
81c68017f09e9fe1cf2d6fb17f3bcf93

SHA1
8732ac5bf5746a5c9e89994e36dc9c3a750306d7

SHA256
c0a9b167da7b6aeb53b3ab5cee5a143c0637f7842e0f165e2733bad8be27cb95

SHA512
2a840656a16bcd13692af13ca38f3f2286a2c978a1005dffa4c057ef49d2d66c709aed233052175d8f9ee5295df2d2cf876b72607f3b25ef82b2658647c67719

Download Submit
memory/2564-133-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2564-134-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2564-135-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2564-136-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2564-150-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4908-152-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/4908-153-0x0000000001F50000-0x0000000001F56000-memory.dmp

Filesize
24KB

Download
memory/4908-159-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download