7afa1761e27beca2ea1c065a9ec99f0efbc5a7b027a245d1cabb185d001865f2

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
13-02-2024 04:02

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General

Target

b18bc97e08168c439ade81044ae248f3.exe
Size

98KB
MD5

b18bc97e08168c439ade81044ae248f3
SHA1

8dc5ab86f914c642ba3bf0fd0116bfdbdb3c6a4d
SHA256

7afa1761e27beca2ea1c065a9ec99f0efbc5a7b027a245d1cabb185d001865f2
SHA512

26b4e5b082c3ec8d2cc49631671980ab96a9aaff992ac69b301928e9745bf70b76398dd2ad900b5377b07d1bc10866a94923930b92a4d91470607fa3f57e0cb1
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpwqWsviPGF20:AnBdOOtEvwDpj6zP0

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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	b18bc97e08168c439ade81044ae248f3.exe

Executes dropped EXE 1 IoCs

pid	Process
1448	asih.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4592-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0007000000023226-13.dat	upx
behavioral2/memory/1448-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/4592-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/1448-27-0x0000000000500000-0x000000000050F000-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 4592 wrote to memory of 1448	4592	b18bc97e08168c439ade81044ae248f3.exe	84
PID 4592 wrote to memory of 1448	4592	b18bc97e08168c439ade81044ae248f3.exe	84
PID 4592 wrote to memory of 1448	4592	b18bc97e08168c439ade81044ae248f3.exe	84

C:\Users\Admin\AppData\Local\Temp\b18bc97e08168c439ade81044ae248f3.exe
"C:\Users\Admin\AppData\Local\Temp\b18bc97e08168c439ade81044ae248f3.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1448

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Replay Monitor

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Downloads

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

Filesize
98KB

MD5
519ed9020388d60eb7392492c3c70ffb

SHA1
b74ebb2ce8dad62d1c37e9ab99901cb1a8cc5cb3

SHA256
46f4b9b7a4e81004ba13b3d6b40ddfb65aaf7e52aa4abb52669a0ecbb376fc63

SHA512
42ca88cc02933fdbb96e62489918e002bcbf5712042e15415373919a9048bd86a47aa1f706ed1dc24b5a0008c86997ee8ed05e2c59acd9c4c30efe0b900dc9ac

Download Submit
memory/1448-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1448-20-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/1448-26-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/1448-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4592-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4592-1-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4592-2-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4592-3-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/4592-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download