00121fb2a8907f7c7ce32d54a813138b277b7db071a006a722209612244262cd

Analysis

max time kernel
151s
max time network
156s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
23/10/2023, 20:26

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General

Target

NEAS.2023-09-06_9ab122231c0497880bdb261ddc48531d_cryptolocker_JC.exe
Size

74KB
MD5

9ab122231c0497880bdb261ddc48531d
SHA1

56f01b1966269b9a7a887457678cd2dc59412adf
SHA256

00121fb2a8907f7c7ce32d54a813138b277b7db071a006a722209612244262cd
SHA512

011938c83f24369c13603b0e93cd5f20874eb51d42ab67b9a7368064c31a583bc46e483edeca98003d077e575f10dcdce5039304751fbbd921df77c8f03b7a20
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOA+YS2:T6a+rdOOtEvwDpjNM

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2636	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2584	NEAS.2023-09-06_9ab122231c0497880bdb261ddc48531d_cryptolocker_JC.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2584-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00070000000120e5-11.dat	upx
behavioral1/memory/2584-12-0x0000000002800000-0x0000000002810000-memory.dmp	upx
behavioral1/memory/2584-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00070000000120e5-15.dat	upx
behavioral1/memory/2636-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00070000000120e5-26.dat	upx
behavioral1/memory/2636-27-0x0000000000500000-0x0000000000510000-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 2584 wrote to memory of 2636	2584	NEAS.2023-09-06_9ab122231c0497880bdb261ddc48531d_cryptolocker_JC.exe	28
PID 2584 wrote to memory of 2636	2584	NEAS.2023-09-06_9ab122231c0497880bdb261ddc48531d_cryptolocker_JC.exe	28
PID 2584 wrote to memory of 2636	2584	NEAS.2023-09-06_9ab122231c0497880bdb261ddc48531d_cryptolocker_JC.exe	28
PID 2584 wrote to memory of 2636	2584	NEAS.2023-09-06_9ab122231c0497880bdb261ddc48531d_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-06_9ab122231c0497880bdb261ddc48531d_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-06_9ab122231c0497880bdb261ddc48531d_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2636

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
74KB

MD5
05d2993befc220590d9f740b0f54c5d5

SHA1
a1422c28994512de6133e7bf5923316958536799

SHA256
b8aef9e60848e03af207a803c9328afe7ed193cfbe3cae976b0932771b944d7a

SHA512
7ebfe20d23031bb91ec2013158446b653d0cc5a4d80130b5feb4b91df05f446830d94b56a34c78604f07559b60a77babc0b4fb067223aeaefb643cf23e3cab37

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

Filesize
74KB

MD5
05d2993befc220590d9f740b0f54c5d5

SHA1
a1422c28994512de6133e7bf5923316958536799

SHA256
b8aef9e60848e03af207a803c9328afe7ed193cfbe3cae976b0932771b944d7a

SHA512
7ebfe20d23031bb91ec2013158446b653d0cc5a4d80130b5feb4b91df05f446830d94b56a34c78604f07559b60a77babc0b4fb067223aeaefb643cf23e3cab37

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

Filesize
74KB

MD5
05d2993befc220590d9f740b0f54c5d5

SHA1
a1422c28994512de6133e7bf5923316958536799

SHA256
b8aef9e60848e03af207a803c9328afe7ed193cfbe3cae976b0932771b944d7a

SHA512
7ebfe20d23031bb91ec2013158446b653d0cc5a4d80130b5feb4b91df05f446830d94b56a34c78604f07559b60a77babc0b4fb067223aeaefb643cf23e3cab37

Download Submit
memory/2584-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2584-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2584-12-0x0000000002800000-0x0000000002810000-memory.dmp

Filesize
64KB

Download
memory/2584-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2584-3-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2584-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2636-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2636-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2636-19-0x0000000001C90000-0x0000000001C96000-memory.dmp

Filesize
24KB

Download
memory/2636-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download