45392e18601c851f5dc2b7e725dec2c9cb0d97a1c67fe64c4ea8f19fe560437b

Analysis

max time kernel
138s
max time network
150s
platform
windows10-1703_x64
resource
win10-20230703-en
resource tags

arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
submitted
17/07/2023, 04:51

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General

Target

Setup.exe
Size

2.4MB
MD5

9937c26ad68eb58a208d6d342fb732a3
SHA1

d1b3037ec67c614049ce9287529e1b3f1f685dd3
SHA256

45392e18601c851f5dc2b7e725dec2c9cb0d97a1c67fe64c4ea8f19fe560437b
SHA512

2534fda7731fa7d233b5bde4ee089fcb499145445344ce154d755f734a2cc3bb70ab8a225aba1494c05f0cf1ac84a4b26fb753e7ae9895269b013526d5c6ed15
SSDEEP

49152:agGE8+l2lvMGXbPdH9IRz8UQyZ7GHDwUpl5x+X:atEl2l5XbBUPQyZ7GjDQ

Score

7^/10

spyware stealer upx

Malware Config

Signatures

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4948-117-0x0000000000400000-0x00000000008F4000-memory.dmp	upx
behavioral2/memory/4948-120-0x0000000000400000-0x00000000008F4000-memory.dmp	upx
behavioral2/memory/4948-121-0x0000000000400000-0x00000000008F4000-memory.dmp	upx
behavioral2/memory/4948-122-0x0000000000400000-0x00000000008F4000-memory.dmp	upx
behavioral2/memory/4948-123-0x0000000000400000-0x00000000008F4000-memory.dmp	upx
behavioral2/memory/4948-124-0x0000000000400000-0x00000000008F4000-memory.dmp	upx

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4956 set thread context of 4948	4956	Setup.exe	71

GoLang User-Agent 1 IoCs

Uses default user-agent string defined by GoLang HTTP packages.

description	flow	ioc
HTTP User-Agent header	2	Go-http-client/1.1

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 4936	4956	Setup.exe	70
PID 4956 wrote to memory of 4936	4956	Setup.exe	70
PID 4956 wrote to memory of 4936	4956	Setup.exe	70
PID 4956 wrote to memory of 4948	4956	Setup.exe	71
PID 4956 wrote to memory of 4948	4956	Setup.exe	71
PID 4956 wrote to memory of 4948	4956	Setup.exe	71
PID 4956 wrote to memory of 4948	4956	Setup.exe	71
PID 4956 wrote to memory of 4948	4956	Setup.exe	71
PID 4956 wrote to memory of 4948	4956	Setup.exe	71
PID 4956 wrote to memory of 4948	4956	Setup.exe	71
PID 4956 wrote to memory of 4948	4956	Setup.exe	71

C:\Users\Admin\AppData\Local\Temp\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4956
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:4936
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:4948

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4948-117-0x0000000000400000-0x00000000008F4000-memory.dmp

Filesize
5.0MB

Download
memory/4948-120-0x0000000000400000-0x00000000008F4000-memory.dmp

Filesize
5.0MB

Download
memory/4948-121-0x0000000000400000-0x00000000008F4000-memory.dmp

Filesize
5.0MB

Download
memory/4948-122-0x0000000000400000-0x00000000008F4000-memory.dmp

Filesize
5.0MB

Download
memory/4948-123-0x0000000000400000-0x00000000008F4000-memory.dmp

Filesize
5.0MB

Download
memory/4948-124-0x0000000000400000-0x00000000008F4000-memory.dmp

Filesize
5.0MB

Download
memory/4956-118-0x0000000001330000-0x000000000158D000-memory.dmp

Filesize
2.4MB

Download
memory/4956-119-0x0000000001330000-0x000000000158D000-memory.dmp

Filesize
2.4MB

Download