62fdf857bb5ebb807dda6aae147736d1cf4cf2b5ac77bf46c76f91046ac85796

Analysis

max time kernel
141s
max time network
145s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
01/08/2023, 15:45

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General

Target

2ca301fbd05329543b003f986820477a_cryptolocker_JC.exe
Size

98KB
MD5

2ca301fbd05329543b003f986820477a
SHA1

45552d1711d8ddadd719b1af024db099c25660b7
SHA256

62fdf857bb5ebb807dda6aae147736d1cf4cf2b5ac77bf46c76f91046ac85796
SHA512

21be692dd7914baad54679e60372996acefdf4c237bc46e2abee4de224fe6048456ff27c8ce535f37cb40b9cc0ac4ac8251511ef99edd11d2257c640b957c339
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpQbCJjMs:AnBdOOtEvwDpj6z0

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2620	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3048	2ca301fbd05329543b003f986820477a_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3048-54-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/3048-68-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x00080000000120e6-65.dat	upx
behavioral1/files/0x00080000000120e6-69.dat	upx
behavioral1/memory/2620-72-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x00080000000120e6-80.dat	upx
behavioral1/memory/2620-82-0x0000000000500000-0x000000000050F000-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 4 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2620	3048	2ca301fbd05329543b003f986820477a_cryptolocker_JC.exe	28
PID 3048 wrote to memory of 2620	3048	2ca301fbd05329543b003f986820477a_cryptolocker_JC.exe	28
PID 3048 wrote to memory of 2620	3048	2ca301fbd05329543b003f986820477a_cryptolocker_JC.exe	28
PID 3048 wrote to memory of 2620	3048	2ca301fbd05329543b003f986820477a_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\2ca301fbd05329543b003f986820477a_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2ca301fbd05329543b003f986820477a_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2620

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
98KB

MD5
0845fac095afb1f2d952fa9ef80a6c60

SHA1
de3f09b9c1195f8b2c7c203f3a3de7a1b1161b6c

SHA256
925a63439c0b67c16e1a85445ba4575d55e0b157f31b12b1618709e06cbcbd50

SHA512
632ebbd00807b757da1281dda8623d72d0fdc96a19213d481179e2e8a277879dd880a1de83a2c015db09663f3ca3f2d9ceaefce39e99b4d2db191f59c6ca10ef

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

Filesize
98KB

MD5
0845fac095afb1f2d952fa9ef80a6c60

SHA1
de3f09b9c1195f8b2c7c203f3a3de7a1b1161b6c

SHA256
925a63439c0b67c16e1a85445ba4575d55e0b157f31b12b1618709e06cbcbd50

SHA512
632ebbd00807b757da1281dda8623d72d0fdc96a19213d481179e2e8a277879dd880a1de83a2c015db09663f3ca3f2d9ceaefce39e99b4d2db191f59c6ca10ef

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

Filesize
98KB

MD5
0845fac095afb1f2d952fa9ef80a6c60

SHA1
de3f09b9c1195f8b2c7c203f3a3de7a1b1161b6c

SHA256
925a63439c0b67c16e1a85445ba4575d55e0b157f31b12b1618709e06cbcbd50

SHA512
632ebbd00807b757da1281dda8623d72d0fdc96a19213d481179e2e8a277879dd880a1de83a2c015db09663f3ca3f2d9ceaefce39e99b4d2db191f59c6ca10ef

Download Submit
memory/2620-82-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2620-73-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2620-74-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2620-72-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3048-57-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/3048-70-0x0000000000650000-0x000000000065F000-memory.dmp

Filesize
60KB

Download
memory/3048-68-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3048-54-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3048-56-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/3048-81-0x0000000000650000-0x000000000065F000-memory.dmp

Filesize
60KB

Download
memory/3048-55-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download