90076cac1ed83ace3d151cd701298e8fabbed41b22e8aa83fe25c6f13f557ab4

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
23-09-2023 12:18

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General

Target

2023-08-26_30ae9b64ff1ef1922405fb83f3bbd2d7_cryptolocker_JC.exe
Size

88KB
MD5

30ae9b64ff1ef1922405fb83f3bbd2d7
SHA1

916ede32ae11bd8d677032127b9699f3fbbfe88d
SHA256

90076cac1ed83ace3d151cd701298e8fabbed41b22e8aa83fe25c6f13f557ab4
SHA512

5d8eaf3d547033797fb2d8315195a03d4d0f1edade278b9db52c141e51e9e7d58d543de3514190871ff1588736615f058e9d6111e17c6c743b1c1a6a52d9b726
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpx:AnBdOOtEvwDpj6z2

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2004	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2968	2023-08-26_30ae9b64ff1ef1922405fb83f3bbd2d7_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2968-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x00070000000120e4-11.dat	upx
behavioral1/memory/2968-14-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2004-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x00070000000120e4-15.dat	upx
behavioral1/files/0x00070000000120e4-25.dat	upx
behavioral1/memory/2004-26-0x0000000000500000-0x000000000050F000-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 2968 wrote to memory of 2004	2968	2023-08-26_30ae9b64ff1ef1922405fb83f3bbd2d7_cryptolocker_JC.exe	28
PID 2968 wrote to memory of 2004	2968	2023-08-26_30ae9b64ff1ef1922405fb83f3bbd2d7_cryptolocker_JC.exe	28
PID 2968 wrote to memory of 2004	2968	2023-08-26_30ae9b64ff1ef1922405fb83f3bbd2d7_cryptolocker_JC.exe	28
PID 2968 wrote to memory of 2004	2968	2023-08-26_30ae9b64ff1ef1922405fb83f3bbd2d7_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\2023-08-26_30ae9b64ff1ef1922405fb83f3bbd2d7_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2023-08-26_30ae9b64ff1ef1922405fb83f3bbd2d7_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2004

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
89KB

MD5
8d17449dfa56004b7955bc54aedfce39

SHA1
2ea9708bf3f8ee6240655ec081672488cbd55372

SHA256
1414b65433e837972d7c06cccc7733bedd9775847edb145c7fac757a570efbce

SHA512
c9b6732855f3bcc29c7bd9b4f803f632ce8760765ed6df34b61af4ffff11e190ae49635beb3c2a5bc81b86801d2b88bfe70c08f564399a7eb011aab4d143cc75

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

Filesize
89KB

MD5
8d17449dfa56004b7955bc54aedfce39

SHA1
2ea9708bf3f8ee6240655ec081672488cbd55372

SHA256
1414b65433e837972d7c06cccc7733bedd9775847edb145c7fac757a570efbce

SHA512
c9b6732855f3bcc29c7bd9b4f803f632ce8760765ed6df34b61af4ffff11e190ae49635beb3c2a5bc81b86801d2b88bfe70c08f564399a7eb011aab4d143cc75

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

Filesize
89KB

MD5
8d17449dfa56004b7955bc54aedfce39

SHA1
2ea9708bf3f8ee6240655ec081672488cbd55372

SHA256
1414b65433e837972d7c06cccc7733bedd9775847edb145c7fac757a570efbce

SHA512
c9b6732855f3bcc29c7bd9b4f803f632ce8760765ed6df34b61af4ffff11e190ae49635beb3c2a5bc81b86801d2b88bfe70c08f564399a7eb011aab4d143cc75

Download Submit
memory/2004-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2004-19-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2004-18-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2004-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2968-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2968-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2968-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2968-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2968-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download