c8ba0071df16f7ec9b5c5310753d2b33179e7f9298f1faf5331723a9c12187e7

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
06/08/2023, 18:14

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General

Target

905c2aefd17ab5dbc49974738ab36788_cryptolocker_JC.exe
Size

76KB
MD5

905c2aefd17ab5dbc49974738ab36788
SHA1

b2a074e10db3ad461755cabec46e5b31e426ff23
SHA256

c8ba0071df16f7ec9b5c5310753d2b33179e7f9298f1faf5331723a9c12187e7
SHA512

800c266914648aacff58fb8785c305dbe3ead5243e0bfcc26089bc34fb2c6b476ecadda1f49f37ce56ef0e1e2182f8fffaec662260ad7274bc8d6776a2045d0b
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalDSnUE:1nK6a+qdOOtEvwDpjP

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2776	asih.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/744-133-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x0007000000023200-146.dat	upx
behavioral2/files/0x0007000000023200-148.dat	upx
behavioral2/files/0x0007000000023200-149.dat	upx
behavioral2/memory/744-150-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/2776-159-0x0000000000500000-0x000000000050F311-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 744 wrote to memory of 2776	744	905c2aefd17ab5dbc49974738ab36788_cryptolocker_JC.exe	80
PID 744 wrote to memory of 2776	744	905c2aefd17ab5dbc49974738ab36788_cryptolocker_JC.exe	80
PID 744 wrote to memory of 2776	744	905c2aefd17ab5dbc49974738ab36788_cryptolocker_JC.exe	80

C:\Users\Admin\AppData\Local\Temp\905c2aefd17ab5dbc49974738ab36788_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\905c2aefd17ab5dbc49974738ab36788_cryptolocker_JC.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:744
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2776

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
501626c62005a61aa28ab744600e3b89

SHA1
6de98f93791f3daa908d570456ce5a7707194cf3

SHA256
7d52f4a6abaa903bfba70911a479fbefb167068e5ac4ab8c9deb6d970f49b747

SHA512
1a93feba9056399b8429224d901337f0b2d85f03f9fc938015e51ce992f60631dfd7a92499f917d7eb2efb452c2c4a76044b693731fbd20855665c343e01e1cc

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

Filesize
76KB

MD5
501626c62005a61aa28ab744600e3b89

SHA1
6de98f93791f3daa908d570456ce5a7707194cf3

SHA256
7d52f4a6abaa903bfba70911a479fbefb167068e5ac4ab8c9deb6d970f49b747

SHA512
1a93feba9056399b8429224d901337f0b2d85f03f9fc938015e51ce992f60631dfd7a92499f917d7eb2efb452c2c4a76044b693731fbd20855665c343e01e1cc

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

Filesize
76KB

MD5
501626c62005a61aa28ab744600e3b89

SHA1
6de98f93791f3daa908d570456ce5a7707194cf3

SHA256
7d52f4a6abaa903bfba70911a479fbefb167068e5ac4ab8c9deb6d970f49b747

SHA512
1a93feba9056399b8429224d901337f0b2d85f03f9fc938015e51ce992f60631dfd7a92499f917d7eb2efb452c2c4a76044b693731fbd20855665c343e01e1cc

Download Submit
memory/744-133-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/744-134-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/744-135-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/744-136-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/744-150-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2776-152-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2776-153-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2776-159-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download