be70bb4249855bc63c5aafce8275957f655badc217df2861523e883fff96f731

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/10/2024, 01:40

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General

Target

2024-10-13_c7e7488a18495e7892003ee4ee8d0615_cryptolocker.exe
Size

38KB
MD5

c7e7488a18495e7892003ee4ee8d0615
SHA1

dad33e532a2999ef54a504882eb65cf9cae35626
SHA256

be70bb4249855bc63c5aafce8275957f655badc217df2861523e883fff96f731
SHA512

96fca7c2a84fbe8a5187519737742cb3bfeff5fa200e7b287d85a08327e84af232bf895f92d74a96acf584dd847a3531e4741017a4f0ff9a25d394d7d4bec19e
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT6b:qDdFJy3QMOtEvwDpjjWMl7T6b

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2684	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2772	2024-10-13_c7e7488a18495e7892003ee4ee8d0615_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2772-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a000000012250-11.dat	upx
behavioral1/memory/2772-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2684-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2684-27-0x0000000000500000-0x0000000000510000-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	2024-10-13_c7e7488a18495e7892003ee4ee8d0615_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 2772 wrote to memory of 2684	2772	2024-10-13_c7e7488a18495e7892003ee4ee8d0615_cryptolocker.exe	30
PID 2772 wrote to memory of 2684	2772	2024-10-13_c7e7488a18495e7892003ee4ee8d0615_cryptolocker.exe	30
PID 2772 wrote to memory of 2684	2772	2024-10-13_c7e7488a18495e7892003ee4ee8d0615_cryptolocker.exe	30
PID 2772 wrote to memory of 2684	2772	2024-10-13_c7e7488a18495e7892003ee4ee8d0615_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-13_c7e7488a18495e7892003ee4ee8d0615_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_c7e7488a18495e7892003ee4ee8d0615_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- 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:2684

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

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Downloads

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

Filesize
38KB

MD5
324d5b6bf3c3aadd4f79461470ae3915

SHA1
93d204c528e89bfa47e457dc41bf5e2850b6b205

SHA256
825a12e39d9b10ed6117a0a291ce219ec82dd0f43094f5afa3f385dd0574cc4c

SHA512
b99e0d961437a2f039844eb504a8efcd3a21dfa5d3960b9f2cf320609fdc6dfa02c8080d18fc318e51b487a4cf6707d11a14664a68cc4749b16e9143fd141e51

Download Submit
memory/2684-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2684-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2684-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2684-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2772-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2772-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2772-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2772-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2772-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download