10597664e7189742d051d838e3b7990a03b4fbf7ec84ba5362314f2e1ae02f99

Analysis

max time kernel
142s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
17/07/2023, 12:28

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General

Target

81c909b9838232_JC.exe
Size

98KB
MD5

81c909b98382324ba41720425034f992
SHA1

e320e9bcbdb79b7db3b834b3223e21d26230c13f
SHA256

10597664e7189742d051d838e3b7990a03b4fbf7ec84ba5362314f2e1ae02f99
SHA512

558e42b944c788197319a51a50eec2f654f9d3d6c552e3ba6e7cefe451af7b190326e8b5fbfaaf440fe81f687c2df08ecb0662da6bd24bd9149eb38d7f76e0f7
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpQb6I:AnBdOOtEvwDpj6zR

Score

7^/10

upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Control Panel\International\Geo\Nation	81c909b9838232_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
260	asih.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/456-133-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x00080000000231e9-146.dat	upx
behavioral2/files/0x00080000000231e9-148.dat	upx
behavioral2/files/0x00080000000231e9-149.dat	upx
behavioral2/memory/456-150-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/260-159-0x0000000000500000-0x000000000050F000-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 456 wrote to memory of 260	456	81c909b9838232_JC.exe	85
PID 456 wrote to memory of 260	456	81c909b9838232_JC.exe	85
PID 456 wrote to memory of 260	456	81c909b9838232_JC.exe	85

C:\Users\Admin\AppData\Local\Temp\81c909b9838232_JC.exe
"C:\Users\Admin\AppData\Local\Temp\81c909b9838232_JC.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:456
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:260

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
98KB

MD5
7374bca03fdcc6c51338f148b97c5ba6

SHA1
23aed90bf6f965bfdd054b678d22fce7e22105f2

SHA256
058e8d1af7be14de0522adb06fb55b95143c33e528f5c6a988718099f98c8162

SHA512
d9ee722e22595568b542cf9319c778ec7a8f0b7750d306b7bf3b81adc4ea3b2ae3cdceed277134f5ea1dbc56859a3acb78fe1dc4f457dd0eda4cbe9a4c70e98c

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

Filesize
98KB

MD5
7374bca03fdcc6c51338f148b97c5ba6

SHA1
23aed90bf6f965bfdd054b678d22fce7e22105f2

SHA256
058e8d1af7be14de0522adb06fb55b95143c33e528f5c6a988718099f98c8162

SHA512
d9ee722e22595568b542cf9319c778ec7a8f0b7750d306b7bf3b81adc4ea3b2ae3cdceed277134f5ea1dbc56859a3acb78fe1dc4f457dd0eda4cbe9a4c70e98c

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

Filesize
98KB

MD5
7374bca03fdcc6c51338f148b97c5ba6

SHA1
23aed90bf6f965bfdd054b678d22fce7e22105f2

SHA256
058e8d1af7be14de0522adb06fb55b95143c33e528f5c6a988718099f98c8162

SHA512
d9ee722e22595568b542cf9319c778ec7a8f0b7750d306b7bf3b81adc4ea3b2ae3cdceed277134f5ea1dbc56859a3acb78fe1dc4f457dd0eda4cbe9a4c70e98c

Download Submit
memory/260-152-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/260-153-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/260-159-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/456-133-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/456-134-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/456-135-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/456-136-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/456-150-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download