31f0ef2c5b7e6529bc741ab96e8417538f802a58829be69e76312febd0ed1290

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/10/2024, 07:42

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General

Target

2024-10-06_d7f1f73a098639b3950a9930edc6fe5b_cryptolocker.exe
Size

79KB
MD5

d7f1f73a098639b3950a9930edc6fe5b
SHA1

88755ee4aa81f2becf55e871afb6487a6529ccce
SHA256

31f0ef2c5b7e6529bc741ab96e8417538f802a58829be69e76312febd0ed1290
SHA512

64131ed7ef8a82aa7efc3ff20070a540e2b6c94fe808e2371ae3ce5806dcda15a91d1bc00054622f775bec1e279c7e3d92411405f89da0bfefcb13d9dd880cb7
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOTdSWCPRMoVl:T6a+rdOOtEvwDpjNG

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2892	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2792	2024-10-06_d7f1f73a098639b3950a9930edc6fe5b_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2792-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00090000000120f6-11.dat	upx
behavioral1/memory/2892-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2792-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2892-26-0x0000000000500000-0x0000000000510000-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	2024-10-06_d7f1f73a098639b3950a9930edc6fe5b_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 2792 wrote to memory of 2892	2792	2024-10-06_d7f1f73a098639b3950a9930edc6fe5b_cryptolocker.exe	30
PID 2792 wrote to memory of 2892	2792	2024-10-06_d7f1f73a098639b3950a9930edc6fe5b_cryptolocker.exe	30
PID 2792 wrote to memory of 2892	2792	2024-10-06_d7f1f73a098639b3950a9930edc6fe5b_cryptolocker.exe	30
PID 2792 wrote to memory of 2892	2792	2024-10-06_d7f1f73a098639b3950a9930edc6fe5b_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-06_d7f1f73a098639b3950a9930edc6fe5b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-06_d7f1f73a098639b3950a9930edc6fe5b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792
- 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:2892

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
79KB

MD5
68ef6b7717e0018ef36b5ab9fb1f8b11

SHA1
055fbed80261a1d88f81fcf7e70f0053908f99f7

SHA256
79ccbe3aa725612ca5494e139f1c642b28ef6746dbc6e761f26515c4b0fdc943

SHA512
7ad6976b40f5d8972339a92ca61bf863af7b21621bc81932c6d5c70250c94bfc5ca082451314e7468c4733871279640b331a21df2a10a4594b9068e16bdc9b9e

Download Submit
memory/2792-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2792-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2792-2-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2792-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2792-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2892-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2892-25-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2892-18-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2892-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download