6cea73bf6b0dc1b65cfd53f03a0eae4fe06d0039533533f93fffe8d5959728e3

Analysis

max time kernel
150s
max time network
167s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
07/01/2024, 12:11

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General

Target

2024-01-06_7a24f5ee3f9aa51f52e916a695cf503f_cryptolocker.exe
Size

148KB
MD5

7a24f5ee3f9aa51f52e916a695cf503f
SHA1

60db761d4bc9d1b9433189a0e5a4206995cf64ae
SHA256

6cea73bf6b0dc1b65cfd53f03a0eae4fe06d0039533533f93fffe8d5959728e3
SHA512

e76a1ca53060bbba818c430e0bcc2249af27bf891ddc1f945105928045fc36bfb2d70a913fcae11c8b05244ee46b54dbad1a9f41164607828508d11e7e632dd3
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjCGYQbN/PKwNgp699GNtL1egz:T6a+rdOOtEvwDpjLzC

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2360	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2268	2024-01-06_7a24f5ee3f9aa51f52e916a695cf503f_cryptolocker.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2268-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012270-11.dat	upx
behavioral1/memory/2360-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2268-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012270-25.dat	upx
behavioral1/files/0x0007000000012270-13.dat	upx
behavioral1/memory/2360-26-0x0000000000500000-0x0000000000510000-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 2268 wrote to memory of 2360	2268	2024-01-06_7a24f5ee3f9aa51f52e916a695cf503f_cryptolocker.exe	23
PID 2268 wrote to memory of 2360	2268	2024-01-06_7a24f5ee3f9aa51f52e916a695cf503f_cryptolocker.exe	23
PID 2268 wrote to memory of 2360	2268	2024-01-06_7a24f5ee3f9aa51f52e916a695cf503f_cryptolocker.exe	23
PID 2268 wrote to memory of 2360	2268	2024-01-06_7a24f5ee3f9aa51f52e916a695cf503f_cryptolocker.exe	23

C:\Users\Admin\AppData\Local\Temp\2024-01-06_7a24f5ee3f9aa51f52e916a695cf503f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-06_7a24f5ee3f9aa51f52e916a695cf503f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2360

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
99KB

MD5
add4355a334e5b893e9da4bf50c5c7fa

SHA1
6c40c4a8e0933202c81c29e42b86c00c4ed471c3

SHA256
f81e17599c0fa3fa9e8406eafa2526ab249e8b71d4e883b286e2cf5017bccba7

SHA512
3f9f1bc2a9ab44b40733b13150ed74948b2e50a605048227ccc913ac11d0419115ba321f0f4081f08a4154c89c07ba0f08c1e293f301d728785b5de9d0dfd89a

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

Filesize
45KB

MD5
70bc44739c53a231ed2175748600d5d9

SHA1
5c8cc3644d5db7d2e85cb562e7db8e5cbc9eb5aa

SHA256
c0e977dabd3f5a355b382b708ca97a7afe35e5c91ea85bdfb1dca4a7ebc3e12e

SHA512
782afa4c2ad699d3e05ad8df637fec35e63cce9187070e5a05f3fbd2a44621d00999c82ace80531e4d25d00207a8debfcb8810f1af09002586dd4bc868e4de00

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

Filesize
71KB

MD5
25c093032298755f4560395d9ba5eb34

SHA1
94d6697986cf67358043a37b0e997d4d39683e8e

SHA256
c5bb8ccd7bd11b1fef996a77fa2b4eb27eac9af6f01461dadf61a917de3f1741

SHA512
df9539d701ed23ce325b38e5cd5d1369b77fbabb73f052a0563e93a75b8906a6992d10eaca95fcda189ea365ce3c3ec439ac790ab8aae835dbbc1de911d67b4c

Download Submit
memory/2268-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2268-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2268-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2268-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2268-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2360-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2360-19-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2360-18-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2360-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download