e67777127994507801fb778084c88d79e5ddb54e6b03f1917c363f2f18571c4e

Analysis

max time kernel
141s
max time network
138s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-10-2024 17:41

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General

Target

2024-10-04_a421e7aff68bb290ac1f2f80c8aa3a38_cryptolocker.exe
Size

39KB
MD5

a421e7aff68bb290ac1f2f80c8aa3a38
SHA1

df5575411db7394eed1fb3a9da35069a19b80724
SHA256

e67777127994507801fb778084c88d79e5ddb54e6b03f1917c363f2f18571c4e
SHA512

53fedc891a9d55c03ead24ca013c9c4b865b8d6cec32d59e330a8531e56afa15b19f90b621d2d6fd85286c3febcfa1abf39a1bd2a2a72969da0a8255f2ebe630
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITL:qDdFJy3QMOtEvwDpjjWMl7TL

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2256	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2328	2024-10-04_a421e7aff68bb290ac1f2f80c8aa3a38_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2328-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a000000012033-11.dat	upx
behavioral1/memory/2328-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2256-26-0x0000000000500000-0x0000000000510000-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	2024-10-04_a421e7aff68bb290ac1f2f80c8aa3a38_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2256	2328	2024-10-04_a421e7aff68bb290ac1f2f80c8aa3a38_cryptolocker.exe	30
PID 2328 wrote to memory of 2256	2328	2024-10-04_a421e7aff68bb290ac1f2f80c8aa3a38_cryptolocker.exe	30
PID 2328 wrote to memory of 2256	2328	2024-10-04_a421e7aff68bb290ac1f2f80c8aa3a38_cryptolocker.exe	30
PID 2328 wrote to memory of 2256	2328	2024-10-04_a421e7aff68bb290ac1f2f80c8aa3a38_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-04_a421e7aff68bb290ac1f2f80c8aa3a38_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-04_a421e7aff68bb290ac1f2f80c8aa3a38_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2328
- 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:2256

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
39KB

MD5
d36ad6c2f3d74623d2a8ec6afa0f7d70

SHA1
a48c01fb06c7ee14b261393ac8fddae2319db321

SHA256
1523074d837ea5db28f9bd8da7159f67b2493523b94551bc9be1afe2b3f6be2a

SHA512
49da2f533c4928eff5b07307b98ac2b28e55dae6f170a5f70104502e9e5c344b2c9acb8a71184a1dad5adf5ef5f912f2a144550c8d3e51de5e53afd4a58eac12

Download Submit
memory/2256-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2256-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2256-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2328-3-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2328-2-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2328-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2328-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2328-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download