0e676c1a729adf1574cd3551dc46041f735fa018d316b15e042fd359ade68b5a

Analysis

max time kernel
141s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19/11/2024, 15:08

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General

Target

jtupdate.exe
Size

3.1MB
MD5

f63fd16c77d111b761c0be7685548ba8
SHA1

7f1d22347868576d9b27e86881db6715efb10974
SHA256

0e676c1a729adf1574cd3551dc46041f735fa018d316b15e042fd359ade68b5a
SHA512

7331581b8d61609bd76c000279f509de215eef315e24ea4c3e316d7d56ee4a43ee7771ccd9eaa088ff119b8756d2de61e95243be8cb83583ce86c22ffc8bfdb2
SSDEEP

98304:UCPg3W0azM5is0azM5ioC3yXZdGWJu933NgkTosHb9u:j4Daz6iFaz6ify3GWJuVosb9u

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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	jtupdate.exe

Executes dropped EXE 1 IoCs

pid	Process
1456	irsetup.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0007000000023c9b-4.dat	upx
behavioral2/memory/1456-11-0x0000000000400000-0x0000000000581000-memory.dmp	upx
behavioral2/memory/1456-24-0x0000000000400000-0x0000000000581000-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	jtupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	irsetup.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1456	irsetup.exe
1456	irsetup.exe
1456	irsetup.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 760 wrote to memory of 1456	760	jtupdate.exe	85
PID 760 wrote to memory of 1456	760	jtupdate.exe	85
PID 760 wrote to memory of 1456	760	jtupdate.exe	85

C:\Users\Admin\AppData\Local\Temp\jtupdate.exe
"C:\Users\Admin\AppData\Local\Temp\jtupdate.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:760
- 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\jtupdate.exe" "__IRCT:1" "__IRTSS:0" "__IRSID:S-1-5-21-2878641211-696417878-3864914810-1000"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1456

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\_ir_sf_temp_0\irsetup.exe

Filesize
566KB

MD5
3fe7c92dba5c9240b4ab0d6a87e6166a

SHA1
7980d7dffc073515b621834246dda33ab00c308d

SHA256
a7818c1e0dad1cbba4d17809688887adeeafe940a3cb53a6aeabdfcd196f7258

SHA512
bd2c87b2d02b80b90f744a101bbb9294b1d90650a338be725028e6649e46a759fa72032e80ffe911ae82b005b4d2394960e7b73ce7ad8fe3a70e8a47d2a7c98d

Download Submit
memory/1456-11-0x0000000000400000-0x0000000000581000-memory.dmp

Filesize
1.5MB

Download
memory/1456-24-0x0000000000400000-0x0000000000581000-memory.dmp

Filesize
1.5MB

Download