1d9fc350afe94d2aea63085a7584804746feee0cc681f3dd113eaf2f518b5218

Analysis

max time kernel
151s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
15/08/2023, 16:09

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General

Target

f6907c3729718cb5cc44b54428704054_cryptolocker_JC.exe
Size

95KB
MD5

f6907c3729718cb5cc44b54428704054
SHA1

fe8e051a0b9bd62b6f710ddd96bf661d20b1fc39
SHA256

1d9fc350afe94d2aea63085a7584804746feee0cc681f3dd113eaf2f518b5218
SHA512

6b048b3f5901a5ab10332d3498dfa21087ad14c56dc812a820d699c9ee316600d18bb86d0e093a117b00531b8e808bc8ce9fb405174d977dea466ca73c96aa67
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpQbCJhnd:AnBdOOtEvwDpj6z8

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2964	asih.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4164-133-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x000700000002321d-146.dat	upx
behavioral2/files/0x000700000002321d-148.dat	upx
behavioral2/files/0x000700000002321d-150.dat	upx
behavioral2/memory/4164-149-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/2964-159-0x0000000000500000-0x000000000050F000-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 4164 wrote to memory of 2964	4164	f6907c3729718cb5cc44b54428704054_cryptolocker_JC.exe	82
PID 4164 wrote to memory of 2964	4164	f6907c3729718cb5cc44b54428704054_cryptolocker_JC.exe	82
PID 4164 wrote to memory of 2964	4164	f6907c3729718cb5cc44b54428704054_cryptolocker_JC.exe	82

C:\Users\Admin\AppData\Local\Temp\f6907c3729718cb5cc44b54428704054_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\f6907c3729718cb5cc44b54428704054_cryptolocker_JC.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4164
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2964

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
95KB

MD5
8933a7c149442cc7e579fc573d2d207e

SHA1
51d386fd7f83d41e69cdb7ea9b3c9e5d73238636

SHA256
059d9a78bafa2cdec0044c2d5d8393968023f68f5151405b2d805b51cdb407bf

SHA512
9655acfe04d653881d7f6245e2a9298ac5cd1b0d4aa73c986fe763d1e4a3e2bda94bdc01fe2639184a6cdcf79e07d7539b792285591f2965ffe59a591076d698

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

Filesize
95KB

MD5
8933a7c149442cc7e579fc573d2d207e

SHA1
51d386fd7f83d41e69cdb7ea9b3c9e5d73238636

SHA256
059d9a78bafa2cdec0044c2d5d8393968023f68f5151405b2d805b51cdb407bf

SHA512
9655acfe04d653881d7f6245e2a9298ac5cd1b0d4aa73c986fe763d1e4a3e2bda94bdc01fe2639184a6cdcf79e07d7539b792285591f2965ffe59a591076d698

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

Filesize
95KB

MD5
8933a7c149442cc7e579fc573d2d207e

SHA1
51d386fd7f83d41e69cdb7ea9b3c9e5d73238636

SHA256
059d9a78bafa2cdec0044c2d5d8393968023f68f5151405b2d805b51cdb407bf

SHA512
9655acfe04d653881d7f6245e2a9298ac5cd1b0d4aa73c986fe763d1e4a3e2bda94bdc01fe2639184a6cdcf79e07d7539b792285591f2965ffe59a591076d698

Download Submit
memory/2964-153-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/2964-152-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/2964-159-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4164-133-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4164-134-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4164-135-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4164-136-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4164-149-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download