upatre | bb703be1d419dd6ab85a260c3df3023f38c6f9071dfc87382069da61d11a10dd

Analysis

max time kernel
150s
max time network
142s
platform
windows7_x64
resource
win7v20210410
submitted
04-05-2021 20:06

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General

Target

bb703be1d419dd6ab85a260c3df3023f38c6f9071dfc87382069da61d11a10dd.exe
Size

36KB
MD5

ac4dbbac9a357e2e60a92bb2a428abf1
SHA1

0336e16983dbf47dc32ec405757d454de9326930
SHA256

bb703be1d419dd6ab85a260c3df3023f38c6f9071dfc87382069da61d11a10dd
SHA512

2796af048533958e531e021a926d7501d6a88dc6d80cee3177e8199b042b1ac98cbc7152979f82d3e01cf390eab1120fcc4e8796de9a3547e12640f331ee32e0

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
1332	szgfw.exe

Loads dropped DLL 2 IoCs

pid	Process
1688	bb703be1d419dd6ab85a260c3df3023f38c6f9071dfc87382069da61d11a10dd.exe
1688	bb703be1d419dd6ab85a260c3df3023f38c6f9071dfc87382069da61d11a10dd.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 WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 1332	1688	bb703be1d419dd6ab85a260c3df3023f38c6f9071dfc87382069da61d11a10dd.exe	29
PID 1688 wrote to memory of 1332	1688	bb703be1d419dd6ab85a260c3df3023f38c6f9071dfc87382069da61d11a10dd.exe	29
PID 1688 wrote to memory of 1332	1688	bb703be1d419dd6ab85a260c3df3023f38c6f9071dfc87382069da61d11a10dd.exe	29
PID 1688 wrote to memory of 1332	1688	bb703be1d419dd6ab85a260c3df3023f38c6f9071dfc87382069da61d11a10dd.exe	29

C:\Users\Admin\AppData\Local\Temp\bb703be1d419dd6ab85a260c3df3023f38c6f9071dfc87382069da61d11a10dd.exe
"C:\Users\Admin\AppData\Local\Temp\bb703be1d419dd6ab85a260c3df3023f38c6f9071dfc87382069da61d11a10dd.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:1332

Network

MITRE ATT&CK Enterprise v6

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

memory/1688-60-0x0000000075011000-0x0000000075013000-memory.dmp

Filesize
8KB

Download
memory/1688-66-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download