4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d

Analysis

max time kernel
160s
max time network
172s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 19:47

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General

Target

4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d.exe
Size

70KB
MD5

1321c86f9fa22d0cd52dbdfec21e2218
SHA1

9b4dc313182d643fec8770afec1631c019e89c25
SHA256

4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d
SHA512

9051ff687b199324e5494780540653a0eaca6d0fdce726d8f32a8a50be9d1005347721586b7c1d08c4a97673540cce771802bd45d03bc414f87a9da3778f39be
SSDEEP

768:TrItKyw5WHXfQmjIiIk9ecAa0Mb96SyX1DLdRXXXE0009gx:Tr3Z5IfQmv81ar1yXtZAx

Score

9^/10

evasion

Malware Config

Signatures

Detects Windows executables referencing non-Windows User-Agents 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023241-3.dat	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
1768	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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d.exe

Executes dropped EXE 1 IoCs

pid	Process
2220	oqchost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\oqchost.exe	4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d.exe
File opened for modification	C:\Windows\Debug\oqchost.exe	attrib.exe
File created	C:\Windows\Debug\oqchost.exe	4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d.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	1460	4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 1768	1460	4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d.exe	99
PID 1460 wrote to memory of 1768	1460	4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d.exe	99
PID 1460 wrote to memory of 1768	1460	4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d.exe	99
PID 1460 wrote to memory of 2432	1460	4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d.exe	106
PID 1460 wrote to memory of 2432	1460	4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d.exe	106
PID 1460 wrote to memory of 2432	1460	4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d.exe	106

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1768	attrib.exe

C:\Users\Admin\AppData\Local\Temp\4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d.exe
"C:\Users\Admin\AppData\Local\Temp\4fc26d607646a8c93683ac75223ed0c53739de2b1c5f2f147204ebe55f1a110d.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\oqchost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - Views/modifies file attributes
  PID:1768
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\4FC26D~1.EXE > nul
  2⤵
  PID:2432

C:\Windows\Debug\oqchost.exe
C:\Windows\Debug\oqchost.exe
1⤵
- Executes dropped EXE
PID:2220

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4076 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8
1⤵
PID:5068

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\oqchost.exe

Filesize
70KB

MD5
7486e851cc00e21d6df6e5f8f470441f

SHA1
7e570806ac1e16c13bac2ca0651c4f9955da8755

SHA256
02bb9981e43149adfe608b037763e8fc9614372035eba167366bbfd87e6b565a

SHA512
b50127b4bfa8f4aad5183833c5848c19a77c885463f2ae8c94d1f0353e9ed5554ac4e1adc875712dd470b4c11659dfffa7eda24b44ad46a7108a0f8cf5dde803

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads