upatre | cf3b79d8e19b0dac62dc2015c86cc93a37e0a96f7b5562eed17a2b8dc0c3723e

Analysis

max time kernel
149s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
21-12-2023 22:52

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General

Target

1bb33b08beabb8334d2b11ac1110d0a1.exe
Size

12KB
MD5

1bb33b08beabb8334d2b11ac1110d0a1
SHA1

0d5bdb5946b38137834c0bd1d0a18a9a5fa5c245
SHA256

cf3b79d8e19b0dac62dc2015c86cc93a37e0a96f7b5562eed17a2b8dc0c3723e
SHA512

e6c45d2b276248af0f23c1c9ec59f41041f974fd669b685c350583b6c30020ef3eedcfe48b8063afdd2fc224a6a6e254950ad73b4e1290e980ac5adbc6eda7a1
SSDEEP

384:6K+dKfzQHxFxRmyja4QhiP7UlY/pjKkFlplVDzylQ:v+dAURFxna4QAPQlYgkFlplVDzylQ

Score

10^/10

upatre downloader

Malware Config

Signatures

Upatre
Upatre is a generic malware downloader.
downloader upatre

Executes dropped EXE 1 IoCs

pid	Process
2328	szgfw.exe

Loads dropped DLL 2 IoCs

pid	Process
2240	1bb33b08beabb8334d2b11ac1110d0a1.exe
2240	1bb33b08beabb8334d2b11ac1110d0a1.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 2240 wrote to memory of 2328	2240	1bb33b08beabb8334d2b11ac1110d0a1.exe	28
PID 2240 wrote to memory of 2328	2240	1bb33b08beabb8334d2b11ac1110d0a1.exe	28
PID 2240 wrote to memory of 2328	2240	1bb33b08beabb8334d2b11ac1110d0a1.exe	28
PID 2240 wrote to memory of 2328	2240	1bb33b08beabb8334d2b11ac1110d0a1.exe	28

C:\Users\Admin\AppData\Local\Temp\1bb33b08beabb8334d2b11ac1110d0a1.exe
"C:\Users\Admin\AppData\Local\Temp\1bb33b08beabb8334d2b11ac1110d0a1.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\szgfw.exe
  "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
  2⤵
  - Executes dropped EXE
  PID:2328

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
12KB

MD5
02107f4c9b0b5cc55102075cb62613a9

SHA1
5f5cc32afce30ab3edd3ab9338894f2dec2623b8

SHA256
79f99d22cf938849016e05e213f37d83da033204d0f54e2fbbe170b65cea484e

SHA512
39003ac4e3622affbd3bdccb7348f89fe64a9dc0a71af30c1bf3371245280b637f2e6293753ff523fbdb5ffc885847062d2c438f16ade1c970624229d96029e7

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