upatre | f5d4c6500dd5d2614f795f8bd0c6259e43a3af3cbc86dfce1fc2576dafac1cb3

General

Target

f5d4c6500dd5d2614f795f8bd0c6259e43a3af3cbc86dfce1fc2576dafac1cb3.exe
Size

266KB
MD5

fea7b2e06e4bdf93a5c6b22507c4105e
SHA1

9ecc6ed6111cf7447427752b04fef412c0c8b6d7
SHA256

f5d4c6500dd5d2614f795f8bd0c6259e43a3af3cbc86dfce1fc2576dafac1cb3
SHA512

e5a7bc24a6a4cb03afe416bf87e85b753137193dea176f4f2f874082df748c9a24446c363365eb30ff2b043908f10628d5f48df0a46746206e8bc1ac9b8dea65

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
4320	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	f5d4c6500dd5d2614f795f8bd0c6259e43a3af3cbc86dfce1fc2576dafac1cb3.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
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
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	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	4776	svchost.exe
Token: SeCreatePagefilePrivilege	4776	svchost.exe
Token: SeShutdownPrivilege	4776	svchost.exe
Token: SeCreatePagefilePrivilege	4776	svchost.exe
Token: SeShutdownPrivilege	4776	svchost.exe
Token: SeCreatePagefilePrivilege	4776	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4652 wrote to memory of 4320	4652	f5d4c6500dd5d2614f795f8bd0c6259e43a3af3cbc86dfce1fc2576dafac1cb3.exe	88
PID 4652 wrote to memory of 4320	4652	f5d4c6500dd5d2614f795f8bd0c6259e43a3af3cbc86dfce1fc2576dafac1cb3.exe	88
PID 4652 wrote to memory of 4320	4652	f5d4c6500dd5d2614f795f8bd0c6259e43a3af3cbc86dfce1fc2576dafac1cb3.exe	88

C:\Users\Admin\AppData\Local\Temp\f5d4c6500dd5d2614f795f8bd0c6259e43a3af3cbc86dfce1fc2576dafac1cb3.exe
"C:\Users\Admin\AppData\Local\Temp\f5d4c6500dd5d2614f795f8bd0c6259e43a3af3cbc86dfce1fc2576dafac1cb3.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4652
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:4320

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:4776

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4320-135-0x0000000000520000-0x0000000000521000-memory.dmp

Filesize
4KB

Download
memory/4776-130-0x00000270DF390000-0x00000270DF3A0000-memory.dmp

Filesize
64KB

Download
memory/4776-131-0x00000270DFA20000-0x00000270DFA30000-memory.dmp

Filesize
64KB

Download
memory/4776-132-0x00000270E2110000-0x00000270E2114000-memory.dmp

Filesize
16KB

Download

Analysis

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