a0928f976cf5649ffee2a07ebaa379f7fd74547806bcce91255179459c2a7f8d

Analysis

max time kernel
143s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 19:02

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General

Target

a2844dfc7055b74393597e4a2e56ff44.exe
Size

891KB
MD5

a2844dfc7055b74393597e4a2e56ff44
SHA1

e86282aedf6f731035ddcdd6b60a481fa8b014ee
SHA256

a0928f976cf5649ffee2a07ebaa379f7fd74547806bcce91255179459c2a7f8d
SHA512

5db7e895beb74f02c57e4f2e4706f320e0df9712461f7d0eb659b609627fed6ee49a41c64ec292622c5f5ffa5768b5148d189d1c23d91debee4e52462a9df4c0
SSDEEP

24576:IAgCYQ1LGum4sx8Kofd/uV+w+p+mzeUhYfq4G:7gCh1LGumhuW+Jp+QeUhYfo

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-1-5-21-2200714112-3788720386-2559682836-1000\Control Panel\International\Geo\Nation	a2844dfc7055b74393597e4a2e56ff44.exe

Executes dropped EXE 1 IoCs

pid	Process
3172	irsetup.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0006000000023217-4.dat	upx
behavioral2/memory/3172-11-0x0000000000400000-0x0000000000581000-memory.dmp	upx
behavioral2/memory/3172-21-0x0000000000400000-0x0000000000581000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\OB Color Picker Setup Log.txt	irsetup.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3172	irsetup.exe
3172	irsetup.exe
3172	irsetup.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3336 wrote to memory of 3172	3336	a2844dfc7055b74393597e4a2e56ff44.exe	87
PID 3336 wrote to memory of 3172	3336	a2844dfc7055b74393597e4a2e56ff44.exe	87
PID 3336 wrote to memory of 3172	3336	a2844dfc7055b74393597e4a2e56ff44.exe	87

C:\Users\Admin\AppData\Local\Temp\a2844dfc7055b74393597e4a2e56ff44.exe
"C:\Users\Admin\AppData\Local\Temp\a2844dfc7055b74393597e4a2e56ff44.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3336
- C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe
  "C:\Users\Admin\AppData\Local\Temp\_ir_sf_temp_0\irsetup.exe" __IRAOFF:662050 "__IRAFN:C:\Users\Admin\AppData\Local\Temp\a2844dfc7055b74393597e4a2e56ff44.exe" "__IRCT:1" "__IRTSS:0" "__IRSID:S-1-5-21-2200714112-3788720386-2559682836-1000"
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  PID:3172

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\_ir_sf_temp_0\irsetup.exe

Filesize
566KB

MD5
3fe7c92dba5c9240b4ab0d6a87e6166a

SHA1
7980d7dffc073515b621834246dda33ab00c308d

SHA256
a7818c1e0dad1cbba4d17809688887adeeafe940a3cb53a6aeabdfcd196f7258

SHA512
bd2c87b2d02b80b90f744a101bbb9294b1d90650a338be725028e6649e46a759fa72032e80ffe911ae82b005b4d2394960e7b73ce7ad8fe3a70e8a47d2a7c98d

Download Submit
memory/3172-11-0x0000000000400000-0x0000000000581000-memory.dmp

Filesize
1.5MB

Download
memory/3172-21-0x0000000000400000-0x0000000000581000-memory.dmp

Filesize
1.5MB

Download