d103385106473519bb7d27868777299655f1c674dc477f2b866253568b894688

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09/09/2024, 23:21

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General

Target

2024-09-09_67814d05772d628dbe0685e27722fcdd_cryptolocker.exe
Size

60KB
MD5

67814d05772d628dbe0685e27722fcdd
SHA1

e2230410c61a38b3031d5510f9e887ea0fead827
SHA256

d103385106473519bb7d27868777299655f1c674dc477f2b866253568b894688
SHA512

2d8c36ba394948f01844d34c77579346e65667a7047e162697eb8f3a1aa71061422f6cc02c25050de0de071f41fd78d50a08f29bae2d7a4ddc17b14e4c7704f4
SSDEEP

768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP3qqr:H6QFElP6n+gou9cvMOtEvwDpjCpVXh0

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2668	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1688	2024-09-09_67814d05772d628dbe0685e27722fcdd_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1688-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0063000000011c27-11.dat	upx
behavioral1/memory/1688-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2668-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2668-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-09_67814d05772d628dbe0685e27722fcdd_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 2668	1688	2024-09-09_67814d05772d628dbe0685e27722fcdd_cryptolocker.exe	30
PID 1688 wrote to memory of 2668	1688	2024-09-09_67814d05772d628dbe0685e27722fcdd_cryptolocker.exe	30
PID 1688 wrote to memory of 2668	1688	2024-09-09_67814d05772d628dbe0685e27722fcdd_cryptolocker.exe	30
PID 1688 wrote to memory of 2668	1688	2024-09-09_67814d05772d628dbe0685e27722fcdd_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-09_67814d05772d628dbe0685e27722fcdd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-09_67814d05772d628dbe0685e27722fcdd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
60KB

MD5
fd79ab1e297b9beec1eadd171fad3c9a

SHA1
0725b7b54af88779f16cb1edfb53692eafd3edaa

SHA256
bee1c88b4288a9115f90e8548f790fb43f0387580fcd6e340a69bc0acc0d3737

SHA512
b438552bc1dec1034c2eb51e09335c9b88579418de3f4c049738cfef594621261fbf5a1b94339ff0d4a064a926a7fc8132aca5d017d2e8ba4833c57dd464e8fb

Download Submit
memory/1688-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1688-3-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1688-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1688-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1688-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2668-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2668-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2668-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2668-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download