upatre | 9b3c9aabb7b2a992b627ca3688cd42a3508ce9fff2beedb6de02990dd58976bc

Analysis

max time kernel
155s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
19-02-2022 19:44

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General

Target

9b3c9aabb7b2a992b627ca3688cd42a3508ce9fff2beedb6de02990dd58976bc.exe
Size

7KB
MD5

36b397752eeeac32a44b78c7854bc6ad
SHA1

30f838e761fad05439ab9e14e2a6e5da769d5ee0
SHA256

9b3c9aabb7b2a992b627ca3688cd42a3508ce9fff2beedb6de02990dd58976bc
SHA512

a1ec13e2c035432337c921e000ed37501caf1b5f88a4822b44af7c996ce0f77a3ba1e33801f9dae30e517f5ae904e02b13722c2eff9b82dde86a86e50d048f4f

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
4312	szgfw.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-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	9b3c9aabb7b2a992b627ca3688cd42a3508ce9fff2beedb6de02990dd58976bc.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe
File opened for modification	C:\Windows\WindowsUpdate.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.edb	svchost.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4768	svchost.exe
Token: SeCreatePagefilePrivilege	4768	svchost.exe
Token: SeShutdownPrivilege	4768	svchost.exe
Token: SeCreatePagefilePrivilege	4768	svchost.exe
Token: SeShutdownPrivilege	4768	svchost.exe
Token: SeCreatePagefilePrivilege	4768	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 4312	4456	9b3c9aabb7b2a992b627ca3688cd42a3508ce9fff2beedb6de02990dd58976bc.exe	82
PID 4456 wrote to memory of 4312	4456	9b3c9aabb7b2a992b627ca3688cd42a3508ce9fff2beedb6de02990dd58976bc.exe	82
PID 4456 wrote to memory of 4312	4456	9b3c9aabb7b2a992b627ca3688cd42a3508ce9fff2beedb6de02990dd58976bc.exe	82

C:\Users\Admin\AppData\Local\Temp\9b3c9aabb7b2a992b627ca3688cd42a3508ce9fff2beedb6de02990dd58976bc.exe
"C:\Users\Admin\AppData\Local\Temp\9b3c9aabb7b2a992b627ca3688cd42a3508ce9fff2beedb6de02990dd58976bc.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:4312

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:4768

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4768-132-0x0000024CB9B70000-0x0000024CB9B80000-memory.dmp

Filesize
64KB

Download
memory/4768-133-0x0000024CBA220000-0x0000024CBA230000-memory.dmp

Filesize
64KB

Download
memory/4768-134-0x0000024CBC8F0000-0x0000024CBC8F4000-memory.dmp

Filesize
16KB

Download