8ca203f91fbdc5fd20f63fc8409ce52785852306de1922f8c14f5d1ce0c01820

Resubmissions

25-09-2024 16:37

240925-t45g3ayfka 10

25-09-2024 16:14

240925-tpyqzaxhjg 7

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-09-2024 16:37

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General

Target

8ca203f91fbdc5fd20f63fc8409ce52785852306de1922f8c14f5d1ce0c01820.exe
Size

227KB
MD5

30bc3a4843995db743e3ce3f43cb1cd2
SHA1

dddfca415d3a7b0c1e3f44b70d72f38c8d7e47eb
SHA256

8ca203f91fbdc5fd20f63fc8409ce52785852306de1922f8c14f5d1ce0c01820
SHA512

c080812f8c4048a5e473f618736ab042fa0b254cd5f8870384f12caac1492f4d848757665cd4bca787231a03dc66ed48017b6ca0319ef7810b24e1bda61e53a1
SSDEEP

3072:i3pox1w8FCoFjKej0u/Dt1XWhlPhoutPFLtVBjnmATFUJgsL:i58u8PFjcurvXUlPhoSPvfTZpwgG

Score

7^/10

defense_evasion discovery privilege_escalation 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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	8ca203f91fbdc5fd20f63fc8409ce52785852306de1922f8c14f5d1ce0c01820.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4756-0-0x0000000000400000-0x0000000000479000-memory.dmp	upx
behavioral2/memory/4756-9-0x0000000000400000-0x0000000000479000-memory.dmp	upx

Access Token Manipulation: Create Process with Token 1 TTPs 1 IoCs

defense_evasion privilege_escalation

Create Process with Token

T1134.002

pid	Process
1552	reg.exe

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 7 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mode.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fltMC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mode.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8ca203f91fbdc5fd20f63fc8409ce52785852306de1922f8c14f5d1ce0c01820.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\.Admin\shell\runas\command	reg.exe
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\.Admin	reg.exe
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\.Admin\shell	reg.exe
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\.Admin\shell\runas	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\.Admin\shell\runas\command\ = "cmd /x /d /r set \"f0=%2\" &call \"%2\" %3"	reg.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1552	reg.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4756 wrote to memory of 2160	4756	8ca203f91fbdc5fd20f63fc8409ce52785852306de1922f8c14f5d1ce0c01820.exe	82
PID 4756 wrote to memory of 2160	4756	8ca203f91fbdc5fd20f63fc8409ce52785852306de1922f8c14f5d1ce0c01820.exe	82
PID 4756 wrote to memory of 2160	4756	8ca203f91fbdc5fd20f63fc8409ce52785852306de1922f8c14f5d1ce0c01820.exe	82
PID 2160 wrote to memory of 3780	2160	cmd.exe	84
PID 2160 wrote to memory of 3780	2160	cmd.exe	84
PID 2160 wrote to memory of 3780	2160	cmd.exe	84
PID 2160 wrote to memory of 2332	2160	cmd.exe	85
PID 2160 wrote to memory of 2332	2160	cmd.exe	85
PID 2160 wrote to memory of 2332	2160	cmd.exe	85
PID 2160 wrote to memory of 1552	2160	cmd.exe	86
PID 2160 wrote to memory of 1552	2160	cmd.exe	86
PID 2160 wrote to memory of 1552	2160	cmd.exe	86
PID 2160 wrote to memory of 3988	2160	cmd.exe	87
PID 2160 wrote to memory of 3988	2160	cmd.exe	87
PID 2160 wrote to memory of 3988	2160	cmd.exe	87
PID 2160 wrote to memory of 988	2160	cmd.exe	88
PID 2160 wrote to memory of 988	2160	cmd.exe	88
PID 2160 wrote to memory of 988	2160	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\8ca203f91fbdc5fd20f63fc8409ce52785852306de1922f8c14f5d1ce0c01820.exe
"C:\Users\Admin\AppData\Local\Temp\8ca203f91fbdc5fd20f63fc8409ce52785852306de1922f8c14f5d1ce0c01820.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4756
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Bloatware\Bloatware.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2160
- - C:\Windows\SysWOW64\chcp.com
    chcp 1254
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3780
- - C:\Windows\SysWOW64\mode.com
    mode con: cols=55 lines=12
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2332
- - C:\Windows\SysWOW64\reg.exe
    reg add hkcu\software\classes\.Admin\shell\runas\command /f /ve /d "cmd /x /d /r set \"f0=%2\" &call \"%2\" %3"
    3⤵
    - Access Token Manipulation: Create Process with Token
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Modifies registry key
    PID:1552
- - C:\Windows\SysWOW64\fltMC.exe
    fltmc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3988
- - C:\Windows\SysWOW64\mode.com
    mode con: cols=55 lines=12
    3⤵
    - System Location Discovery: System Language Discovery
    PID:988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Access Token Manipulation

T1134

Create Process with Token

T1134.002

Defense Evasion

Access Token Manipulation

T1134

Create Process with Token

T1134.002

Modify Registry

T1112

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\Bloatware\Bloatware.bat

Filesize
6KB

MD5
277077c220e9a625d79eb0661b933a9c

SHA1
95589a8513bce992d04d09e1bfc7e5545f142bb1

SHA256
fc239f9c3f47f97c85efdf7730161221c5487f833f5c4a4fcc04a768141749ad

SHA512
200880a9ab68b54e9917a4007b3deee6a1c1be4e98c9214e594ab8d214975bd19a2c97a0c918efca3ea3e8cc21ce20b4c948ddcf5d09781a0576c6ffa41ab24e

Download Submit
memory/4756-0-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4756-9-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads