b2709f18a15e8dea1df53f13e52b43d18938fb2cd6327d97df370fef6ce42da2

Analysis

max time kernel
150s
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, 16:54

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General

Target

32605b1e5062affbfb7444899f927807_cryptolocker_JC.exe
Size

76KB
MD5

32605b1e5062affbfb7444899f927807
SHA1

f31b0a5288316f24af77e9d25b63ca62fa46d6dd
SHA256

b2709f18a15e8dea1df53f13e52b43d18938fb2cd6327d97df370fef6ce42da2
SHA512

f4ffbcbf9482458b4cb26bb1feddb9bd8d2870ee635cb92e9a368de532da3aea71c7496d9c96d528ba4b094cdc1adf011eefa5bb7a7d2a5594ab3201ddada0de
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOTzF:T6a+rdOOtEvwDpjNp

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1540	asih.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2736-133-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000d00000002320f-146.dat	upx
behavioral2/files/0x000d00000002320f-148.dat	upx
behavioral2/files/0x000d00000002320f-149.dat	upx
behavioral2/memory/2736-151-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1540-159-0x0000000000500000-0x0000000000510000-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 3 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 1540	2736	32605b1e5062affbfb7444899f927807_cryptolocker_JC.exe	84
PID 2736 wrote to memory of 1540	2736	32605b1e5062affbfb7444899f927807_cryptolocker_JC.exe	84
PID 2736 wrote to memory of 1540	2736	32605b1e5062affbfb7444899f927807_cryptolocker_JC.exe	84

C:\Users\Admin\AppData\Local\Temp\32605b1e5062affbfb7444899f927807_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\32605b1e5062affbfb7444899f927807_cryptolocker_JC.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1540

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
76KB

MD5
4c95b8edc774e09a9c237ee5e371b8ce

SHA1
9d5364dde09ec55f66e4ed26b3e50df92431d286

SHA256
614ec2ece0b7f344f8c51eed25626e3b6ea58d6e51c5663ab4ad3c48f26ab91a

SHA512
375e01b3fcc1206ad4be9a0d76877bdca5d470736daff0359352b59136ee4414e5fb557ddf7d2cf3825ef8efd0ddc47a0d7bb43e3083106166fba78b43240e06

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

Filesize
76KB

MD5
4c95b8edc774e09a9c237ee5e371b8ce

SHA1
9d5364dde09ec55f66e4ed26b3e50df92431d286

SHA256
614ec2ece0b7f344f8c51eed25626e3b6ea58d6e51c5663ab4ad3c48f26ab91a

SHA512
375e01b3fcc1206ad4be9a0d76877bdca5d470736daff0359352b59136ee4414e5fb557ddf7d2cf3825ef8efd0ddc47a0d7bb43e3083106166fba78b43240e06

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

Filesize
76KB

MD5
4c95b8edc774e09a9c237ee5e371b8ce

SHA1
9d5364dde09ec55f66e4ed26b3e50df92431d286

SHA256
614ec2ece0b7f344f8c51eed25626e3b6ea58d6e51c5663ab4ad3c48f26ab91a

SHA512
375e01b3fcc1206ad4be9a0d76877bdca5d470736daff0359352b59136ee4414e5fb557ddf7d2cf3825ef8efd0ddc47a0d7bb43e3083106166fba78b43240e06

Download Submit
memory/1540-152-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/1540-153-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download
memory/1540-159-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2736-133-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2736-134-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2736-135-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2736-136-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2736-151-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download