afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
03/06/2024, 02:24

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General

Target
afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6.exe
Size 65KB
Sample240603-cv736aga2v
SHA256 afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6
MD5 684e95e7829c76db5ea15dc9f7871a65
SHA1 4323d6681f508ccade55136a78976da13073120c
SHA512 62e0a855511e8edb9c93e668c00c94c87244dd02bcdf2539488f51255e9f489ede433375c4c755cf68d26c7f0647056b3a13d928d03ce6ad1d7bd327bd498063
SSDEEP 768:ZrItKyw5WHXfQIhIiIk9ecAaVPD96KyX64:Zr3Z5IfQIR81ad5yX64
MD5 SHA1 SHA512 SSDEEP

Score

9^/10

evasion

Malware Config

Signatures

Detects Windows executables referencing non-Windows User-Agents 4 IoCs

resource	yara_rule
behavioral2/memory/1464-0-0x0000000000400000-0x0000000000411000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/files/0x00090000000233fd-3.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/1464-5-0x0000000000400000-0x0000000000411000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/2404-6-0x0000000000400000-0x0000000000411000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

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
2176	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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6.exe

Executes dropped EXE 1 IoCs

pid	Process
2404	dauhost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\dauhost.exe	afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6.exe
File opened for modification	C:\Windows\Debug\dauhost.exe	afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6.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	1464	afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1464 wrote to memory of 2176	1464	afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6.exe	82
PID 1464 wrote to memory of 2176	1464	afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6.exe	82
PID 1464 wrote to memory of 2176	1464	afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6.exe	82
PID 1464 wrote to memory of 4216	1464	afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6.exe	88
PID 1464 wrote to memory of 4216	1464	afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6.exe	88
PID 1464 wrote to memory of 4216	1464	afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6.exe	88

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2176	attrib.exe

C:\Users\Admin\AppData\Local\Temp\afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6.exe
"C:\Users\Admin\AppData\Local\Temp\afdc421029c172ecf2949fb92f23545e3099a19dba92ca2b3bd5cc01b04910e6.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1464
- 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:2176
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\AFDC42~1.EXE > nul
  2⤵
  PID:4216

C:\Windows\Debug\dauhost.exe
C:\Windows\Debug\dauhost.exe
1⤵
- Executes dropped EXE
PID:2404

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

dauhost.exe

Path C:\Windows\debug\dauhost.exe
Size 65KB
SHA256 490f289f532a59046e2cfd5a2afcf4f49a88d78da92a065c8e79dc26f25b2e49
MD5 3ea698a6e1da4bfd92a143a0f427ae7e
SHA1 e6bd4f74bf5782fbe5664f8c7c89207d3323831f
SHA512 6bbdd697a3cdf0f62abf6ef2efbfcb037a0f9237db92a813e3cf07f9f23e8d25aec932534d02e1f3b814ea54c17c14e75305e656f937adbe3cbf5270f6a3dcd2
SSDEEP 768:ZrItKyw5WHXfQIhIiIk9ecAaVPD96KyX6Z:Zr3Z5IfQIR81ad5yX6Z
MD5 SHA1 SHA512 SSDEEP

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memory/1464-0-0x0000000000400000-0x0000000000411000-memory.dmp

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memory/1464-5-0x0000000000400000-0x0000000000411000-memory.dmp

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memory/2404-6-0x0000000000400000-0x0000000000411000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads