upatre | 155a9681cb56bd9c1cf03fd71228584c01fa709eafe74a9694917cfe8f0bd635

Analysis

max time kernel
150s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20-12-2023 13:45

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General

Target

bb943bb0b26e1aa22a6fa70cc33df387.exe
Size

41KB
MD5

bb943bb0b26e1aa22a6fa70cc33df387
SHA1

db8f6191dc264e12b52d5dae2b08c0f9d8849cfe
SHA256

155a9681cb56bd9c1cf03fd71228584c01fa709eafe74a9694917cfe8f0bd635
SHA512

d628adb71c7a060ab415ed767f3a4e5dea18898be977a354d7a49ab115b6dc2cbb338d595af69cecd40849522272adb0e781e90cb05b36dfbd763d276d6bebea
SSDEEP

768:kf1Y9RRw/dUT6vurGd/pkUOyGAv+rCBsPGTWikRyyyx8ltylQ:GY9jw/dUT62rGdiUOWWrC6P6Tw

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
2700	szgfw.exe

Loads dropped DLL 2 IoCs

pid	Process
2304	bb943bb0b26e1aa22a6fa70cc33df387.exe
2304	bb943bb0b26e1aa22a6fa70cc33df387.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2700	2304	bb943bb0b26e1aa22a6fa70cc33df387.exe	28
PID 2304 wrote to memory of 2700	2304	bb943bb0b26e1aa22a6fa70cc33df387.exe	28
PID 2304 wrote to memory of 2700	2304	bb943bb0b26e1aa22a6fa70cc33df387.exe	28
PID 2304 wrote to memory of 2700	2304	bb943bb0b26e1aa22a6fa70cc33df387.exe	28

C:\Users\Admin\AppData\Local\Temp\bb943bb0b26e1aa22a6fa70cc33df387.exe
"C:\Users\Admin\AppData\Local\Temp\bb943bb0b26e1aa22a6fa70cc33df387.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:2700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\szgfw.exe

Filesize
41KB

MD5
0c251f58732c8ffd2a574648fa1083c4

SHA1
ae92e9dc0b13d4032ba16662e767fbde1e022d9a

SHA256
e51fd323f82d98938998193cdad8dff7cbf67010a324f36d465f42ab7c986f17

SHA512
872f417032036d3fae590113e915c7b66d108819a6b8b5693072d12a912788473f2560419e9604eecc12819b2aba06b623d83e6fe89f4b04f162a736a48196c9

Download Submit
memory/2304-1-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2304-10-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download