3b3169aa8f0f041219dd073fceed09abb39c39b50e0faf4d566ac9b4e937db2b

Analysis

max time kernel
141s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
29/04/2024, 13:55

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General

Target

6aaa5d43e77ac18d068fd3303d6b1771.exe
Size

157KB
MD5

6aaa5d43e77ac18d068fd3303d6b1771
SHA1

8f463ef3eb6c781234de796d109a2d8ea87ae049
SHA256

3b3169aa8f0f041219dd073fceed09abb39c39b50e0faf4d566ac9b4e937db2b
SHA512

033a7725e45bdf4694c710537842a6f7f14b34c74950993e719d3e415ca36cc4ce3359abf2d30765c421ad9605393b56fbb416520395ca341316f5b4eb748ccb
SSDEEP

384:+GXqt4YDuuOFZyUVpULCgDb2prxVTn24FHD6Al6z+yXgf0BHkZ5zsmRZDmZ6/lw1:bX0ZDcZyUpULCgo2aj96ayXbQzTZ/9fm

Score

8^/10

evasion upx

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
3996	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-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation	6aaa5d43e77ac18d068fd3303d6b1771.exe

Executes dropped EXE 1 IoCs

pid	Process
4236	dauhost.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/828-0-0x0000000000400000-0x0000000000427000-memory.dmp	upx
behavioral2/files/0x000d000000023b24-3.dat	upx
behavioral2/memory/828-5-0x0000000000400000-0x0000000000427000-memory.dmp	upx
behavioral2/memory/4236-6-0x0000000000400000-0x0000000000427000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\dauhost.exe	6aaa5d43e77ac18d068fd3303d6b1771.exe
File opened for modification	C:\Windows\Debug\dauhost.exe	6aaa5d43e77ac18d068fd3303d6b1771.exe
File opened for modification	C:\Windows\Debug\dauhost.exe	attrib.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	828	6aaa5d43e77ac18d068fd3303d6b1771.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 828 wrote to memory of 3996	828	6aaa5d43e77ac18d068fd3303d6b1771.exe	83
PID 828 wrote to memory of 3996	828	6aaa5d43e77ac18d068fd3303d6b1771.exe	83
PID 828 wrote to memory of 3996	828	6aaa5d43e77ac18d068fd3303d6b1771.exe	83
PID 828 wrote to memory of 4624	828	6aaa5d43e77ac18d068fd3303d6b1771.exe	89
PID 828 wrote to memory of 4624	828	6aaa5d43e77ac18d068fd3303d6b1771.exe	89
PID 828 wrote to memory of 4624	828	6aaa5d43e77ac18d068fd3303d6b1771.exe	89

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3996	attrib.exe

C:\Users\Admin\AppData\Local\Temp\6aaa5d43e77ac18d068fd3303d6b1771.exe
"C:\Users\Admin\AppData\Local\Temp\6aaa5d43e77ac18d068fd3303d6b1771.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:828
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\dauhost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - Views/modifies file attributes
  PID:3996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\6AAA5D~1.EXE > nul
  2⤵
  PID:4624

C:\Windows\Debug\dauhost.exe
C:\Windows\Debug\dauhost.exe
1⤵
- Executes dropped EXE
PID:4236

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

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\debug\dauhost.exe

Filesize
157KB

MD5
307a2c1325fb0ce9203d9e5b228c0967

SHA1
fdfd1d98148ee74f3ce5809ebdad95df09bc8721

SHA256
65b51e57d261608a7f016cdb64102cfdfec4ceff5387dcbc1aab6b79eabe47cc

SHA512
08caba10982aaa83d987d20e0fb0df3a3c1c8bdbbf86599f4ec7f0c8b4127c236cd67f11bca013cfcbacd1145884576b4d26fc15c31bcbd7da91c08a318207e4

Download Submit
memory/828-0-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/828-5-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/4236-6-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads