597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13/11/2024, 22:23

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General

Target
597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4.exe
Size 77KB
Sample241113-2ar9ms1ama
SHA256 597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4
MD5 b7081b0687b09e5afc375bb89c18d8e4
SHA1 c2b60c5281939208cab141f6077cbac91508277f
SHA512 b9a53a4a4b14fff190dee7ab1aa586fca90c599888ce741e84b9c8fb1a313958b5cc1cbb0bd6b8c0725c9e27aaaf8b1ffffc05e05a1c94e4145c0287b8e84161
SSDEEP 768:OrItKyw5WHXfQmjIiIk9ecAakMb96ZyXuDLdibfffsffff2ZZZZnAAA/z:Or3Z5IfQmv81abyyXcZibfffsffffnz
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

defense_evasion discovery evasion

Malware Config

Signatures

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2668	attrib.exe

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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4.exe

Executes dropped EXE 1 IoCs

pid	Process
4132	uauhost.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\uauhost.exe	597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4.exe
File opened for modification	C:\Windows\Debug\uauhost.exe	597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4.exe
File opened for modification	C:\Windows\Debug\uauhost.exe	attrib.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 4 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	597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uauhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2108	597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 2668	2108	597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4.exe	83
PID 2108 wrote to memory of 2668	2108	597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4.exe	83
PID 2108 wrote to memory of 2668	2108	597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4.exe	83
PID 2108 wrote to memory of 2932	2108	597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4.exe	89
PID 2108 wrote to memory of 2932	2108	597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4.exe	89
PID 2108 wrote to memory of 2932	2108	597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4.exe	89

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2668	attrib.exe

C:\Users\Admin\AppData\Local\Temp\597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4.exe
"C:\Users\Admin\AppData\Local\Temp\597065ef091c26f20b6091aa27ab6d6ac421fba995f202a21b41c0b1be4ba5d4.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\uauhost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Views/modifies file attributes
  PID:2668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\597065~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2932

C:\Windows\Debug\uauhost.exe
C:\Windows\Debug\uauhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4132

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Indicator Removal

T1070

File Deletion

T1070.004

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

uauhost.exe

Path C:\Windows\debug\uauhost.exe
Size 77KB
SHA256 7d04c50711c22d68f30bf0bf502cbfe035155ebb59a29c200d022b624bb4011d
MD5 57a2689fa1e9f2be58f0b160c6965e32
SHA1 039c02b3ea6b5716255511c83665c418beb34b8e
SHA512 1d78c30369d5ac1bd8ff8e1de31582b076ce8322febe2297bfd438371399a9ed28afbcc33baaeb56f0e5dfd5bbdbfd0dea5dfacc29baf0573ec986c9bed8bb86
SSDEEP 768:OrItKyw5WHXfQmjIiIk9ecAakMb96ZyXuDLdibfffsffff2ZZZZnAAA/4:Or3Z5IfQmv81abyyXcZibfffsffffn4
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads