89faaad6edbfda13f95ef94243fd294b1a0ca0334df4f5bc0e27432554cc1a2e

Analysis

max time kernel
114s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/09/2024, 17:45

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General

Target

3e27c421961bc77620deb850e74aa3b0N.exe
Size

37KB
MD5

3e27c421961bc77620deb850e74aa3b0
SHA1

ecd04949e8480c5d85587b9496a8b07cf6c75c47
SHA256

89faaad6edbfda13f95ef94243fd294b1a0ca0334df4f5bc0e27432554cc1a2e
SHA512

6d9da6a8027b7a8c59e357178c2dcbbe02666b544e97326e87c45ca0269c39ca9d93f6a2f4f0c116919404cf03f8f0524c40288ceb31cba1d42b974d636efc6b
SSDEEP

768:6n/xydo0jaMzHrJL3YMZvGOkXCMeKM5TiWC8Z376fEF:6n9+ZI4vPTiWC80fEF

Score

7^/10

discovery 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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	3e27c421961bc77620deb850e74aa3b0N.exe

Executes dropped EXE 1 IoCs

pid	Process
3324	updpdf.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/828-0-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/files/0x0009000000023401-8.dat	upx
behavioral2/memory/828-11-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/memory/3324-17-0x0000000000400000-0x0000000000413000-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	3e27c421961bc77620deb850e74aa3b0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	updpdf.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 828 wrote to memory of 3324	828	3e27c421961bc77620deb850e74aa3b0N.exe	84
PID 828 wrote to memory of 3324	828	3e27c421961bc77620deb850e74aa3b0N.exe	84
PID 828 wrote to memory of 3324	828	3e27c421961bc77620deb850e74aa3b0N.exe	84

C:\Users\Admin\AppData\Local\Temp\3e27c421961bc77620deb850e74aa3b0N.exe
"C:\Users\Admin\AppData\Local\Temp\3e27c421961bc77620deb850e74aa3b0N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:828
- C:\Users\Admin\AppData\Local\Temp\updpdf.exe
  "C:\Users\Admin\AppData\Local\Temp\updpdf.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3324

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
38KB

MD5
cd0d0fde33dec203894cc9ed25d6f012

SHA1
207d6e1a404f54c87eb4261227f64742983b7d30

SHA256
721d355c950b5d375c3218be18deca11e225a31dd71b2397eee084f8b45042b7

SHA512
4ce10f1315d37b1335791d9cf0b543d1f1d6a18a17af57746599c7ce8a27349fb87badfa702466a5d2c27ea0fcd6bf1c5585531b41e11ea85bf21fa2eb701de6

Download Submit
memory/828-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/828-1-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/828-2-0x0000000004000000-0x0000000004005000-memory.dmp

Filesize
20KB

Download
memory/828-4-0x00007FFEA4130000-0x00007FFEA4325000-memory.dmp

Filesize
2.0MB

Download
memory/828-11-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/828-13-0x00007FFEA4130000-0x00007FFEA4325000-memory.dmp

Filesize
2.0MB

Download
memory/3324-16-0x00007FFEA4130000-0x00007FFEA4325000-memory.dmp

Filesize
2.0MB

Download
memory/3324-17-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3324-19-0x00007FFEA4130000-0x00007FFEA4325000-memory.dmp

Filesize
2.0MB

Download