25a41d845e2760b7bd82aecba845dc009c8a02e0df0c1159392fab5a8d7418ff

Analysis

max time kernel
133s
max time network
144s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
05-08-2023 14:24

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General

Target

764056f7f8c62543d279aeb2eb19112f_cryptolocker_JC.exe
Size

85KB
MD5

764056f7f8c62543d279aeb2eb19112f
SHA1

59b16d9792c21103654307571c28f8cafad09c94
SHA256

25a41d845e2760b7bd82aecba845dc009c8a02e0df0c1159392fab5a8d7418ff
SHA512

f50fe64c269ecbf19e7aa8bf0c9cdc5266a623110aa4043df6ca2b0b66cece53694b35ad9c97f00eac1881b0ef5e904337531407d4ab1076b615336616919cbc
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOTzciJjHP:T6a+rdOOtEvwDpjNw0

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1964	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2100	764056f7f8c62543d279aeb2eb19112f_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2100-54-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a000000012024-65.dat	upx
behavioral1/memory/2100-69-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1964-71-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a000000012024-70.dat	upx
behavioral1/files/0x000a000000012024-80.dat	upx
behavioral1/memory/1964-82-0x0000000000500000-0x0000000000510000-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 2100 wrote to memory of 1964	2100	764056f7f8c62543d279aeb2eb19112f_cryptolocker_JC.exe	28
PID 2100 wrote to memory of 1964	2100	764056f7f8c62543d279aeb2eb19112f_cryptolocker_JC.exe	28
PID 2100 wrote to memory of 1964	2100	764056f7f8c62543d279aeb2eb19112f_cryptolocker_JC.exe	28
PID 2100 wrote to memory of 1964	2100	764056f7f8c62543d279aeb2eb19112f_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\764056f7f8c62543d279aeb2eb19112f_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\764056f7f8c62543d279aeb2eb19112f_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1964

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
3346f14e139178a0442f11b19a22c599

SHA1
a5a8337540d63dc0dd587a052ee1b5d878c02e00

SHA256
89235a1b5849f81d04ff44d95618539fee3f89a74a47d4930d8f12635a5cc741

SHA512
d7a94f1bd462092073ea61874a2ebda541a530174aacee07a279cce0c32878c8b38002b041548aa0346b8773ac0704978bcc020c4837ce687699d15b2ed6f3aa

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

Filesize
85KB

MD5
3346f14e139178a0442f11b19a22c599

SHA1
a5a8337540d63dc0dd587a052ee1b5d878c02e00

SHA256
89235a1b5849f81d04ff44d95618539fee3f89a74a47d4930d8f12635a5cc741

SHA512
d7a94f1bd462092073ea61874a2ebda541a530174aacee07a279cce0c32878c8b38002b041548aa0346b8773ac0704978bcc020c4837ce687699d15b2ed6f3aa

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

Filesize
85KB

MD5
3346f14e139178a0442f11b19a22c599

SHA1
a5a8337540d63dc0dd587a052ee1b5d878c02e00

SHA256
89235a1b5849f81d04ff44d95618539fee3f89a74a47d4930d8f12635a5cc741

SHA512
d7a94f1bd462092073ea61874a2ebda541a530174aacee07a279cce0c32878c8b38002b041548aa0346b8773ac0704978bcc020c4837ce687699d15b2ed6f3aa

Download Submit
memory/1964-71-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1964-82-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1964-74-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1964-73-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2100-56-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2100-67-0x0000000000460000-0x0000000000470000-memory.dmp

Filesize
64KB

Download
memory/2100-69-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2100-54-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2100-58-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2100-81-0x0000000000460000-0x0000000000470000-memory.dmp

Filesize
64KB

Download
memory/2100-55-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download