upatre | 8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3

Analysis

max time kernel
157s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
19-02-2022 19:53

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General

Target

8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe
Size

31KB
MD5

ec04f3f4850e52e9d852374502beb39f
SHA1

00ba0a57045736c252d16e78ed89a8025f7152ab
SHA256

8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3
SHA512

9089b0bc8dc05b9f79b660dd13732ef03fbab9928e18f21a2995c0d59b4964d675e6b0a620ac2e6820330b780e844432eaea565f0302f9c877554d91c7d58ee4

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
3064	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	8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
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
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	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	804	svchost.exe
Token: SeCreatePagefilePrivilege	804	svchost.exe
Token: SeShutdownPrivilege	804	svchost.exe
Token: SeCreatePagefilePrivilege	804	svchost.exe
Token: SeShutdownPrivilege	804	svchost.exe
Token: SeCreatePagefilePrivilege	804	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 3064	2108	8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe	88
PID 2108 wrote to memory of 3064	2108	8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe	88
PID 2108 wrote to memory of 3064	2108	8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe	88

C:\Users\Admin\AppData\Local\Temp\8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe
"C:\Users\Admin\AppData\Local\Temp\8fb5bb6e9859732b8c4f0accb086cff88aab31a4050c8bd66da04ccf3bb2cfb3.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:3064

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:804

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

Replay Monitor

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Downloads

memory/804-130-0x000001D5A5330000-0x000001D5A5340000-memory.dmp

Filesize
64KB

Download
memory/804-131-0x000001D5A5390000-0x000001D5A53A0000-memory.dmp

Filesize
64KB

Download
memory/804-132-0x000001D5A80B0000-0x000001D5A80B4000-memory.dmp

Filesize
16KB

Download
memory/3064-135-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download