7e8156c2941c1942769d385b5697577216f19514802a8e5975d42cb8f9a89fd1

Analysis

max time kernel
138s
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
08/08/2023, 17:49

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General

Target

9eabe3f3fb7907dcdb9a809855c1d969_cryptolocker_JC.exe
Size

84KB
MD5

9eabe3f3fb7907dcdb9a809855c1d969
SHA1

8d1e3a056440ca9d00084c7a12f6301836774139
SHA256

7e8156c2941c1942769d385b5697577216f19514802a8e5975d42cb8f9a89fd1
SHA512

58435e3058b9fc21d8d7066cfd0f88a4fb051745d321af5de7075ca89982cb0008f3a3bdb909c65e719dd798da562bda1f3b8594205000494249ed3bf13abf76
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOTzciJjHGlxsLs:T6a+rdOOtEvwDpjNw3

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4912	asih.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4308-133-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x00070000000230c0-146.dat	upx
behavioral2/files/0x00070000000230c0-148.dat	upx
behavioral2/files/0x00070000000230c0-149.dat	upx
behavioral2/memory/4308-153-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4912-159-0x0000000000500000-0x0000000000510000-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 4308 wrote to memory of 4912	4308	9eabe3f3fb7907dcdb9a809855c1d969_cryptolocker_JC.exe	80
PID 4308 wrote to memory of 4912	4308	9eabe3f3fb7907dcdb9a809855c1d969_cryptolocker_JC.exe	80
PID 4308 wrote to memory of 4912	4308	9eabe3f3fb7907dcdb9a809855c1d969_cryptolocker_JC.exe	80

C:\Users\Admin\AppData\Local\Temp\9eabe3f3fb7907dcdb9a809855c1d969_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\9eabe3f3fb7907dcdb9a809855c1d969_cryptolocker_JC.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4308
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4912

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
85KB

MD5
4990053e71bdef9570540bab67c69c2b

SHA1
5be574c8aeaddc598425da87d150a077482ee59b

SHA256
21b2be76ab9840ffa2f79a6733a3558ffe79d5bbb968b7dea33bd8635cafc777

SHA512
18681adb30c701cc0eeb28dbb79912f9d2431010f7a74d041b01326e0a65324828d2aec75eecfdb246aac8a965c685d7e3645e00abb14954c2b70b55210df008

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

Filesize
85KB

MD5
4990053e71bdef9570540bab67c69c2b

SHA1
5be574c8aeaddc598425da87d150a077482ee59b

SHA256
21b2be76ab9840ffa2f79a6733a3558ffe79d5bbb968b7dea33bd8635cafc777

SHA512
18681adb30c701cc0eeb28dbb79912f9d2431010f7a74d041b01326e0a65324828d2aec75eecfdb246aac8a965c685d7e3645e00abb14954c2b70b55210df008

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

Filesize
85KB

MD5
4990053e71bdef9570540bab67c69c2b

SHA1
5be574c8aeaddc598425da87d150a077482ee59b

SHA256
21b2be76ab9840ffa2f79a6733a3558ffe79d5bbb968b7dea33bd8635cafc777

SHA512
18681adb30c701cc0eeb28dbb79912f9d2431010f7a74d041b01326e0a65324828d2aec75eecfdb246aac8a965c685d7e3645e00abb14954c2b70b55210df008

Download Submit
memory/4308-133-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4308-134-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/4308-135-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/4308-136-0x00000000007E0000-0x00000000007E6000-memory.dmp

Filesize
24KB

Download
memory/4308-153-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4912-151-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/4912-152-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4912-159-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download