c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62

Analysis

max time kernel
158s
max time network
175s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
05/12/2022, 06:30

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General

Target

c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe
Size

165KB
MD5

669110614ddb55c7fe76ed066c2d83c9
SHA1

18e03e42063d5a5ba34c5dc099ce48fc21e855b1
SHA256

c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62
SHA512

eb219b7d4f3d91c9bd0915aaa4df861411a0d443552339f452fd75189df03dc0b75f4cc13bfa67cbe8ae8ed3bbe224c427fe110ad27793db876c66117367ac98
SSDEEP

3072:ReGlO/laYP9Af/iyXYi/lEcZQcis1ejEBid076EHPsmL5LCTm0u974KBrxxzYNv:ReGlWQYPByIiWhNKLBTjt5eK393Brxx6

Score

10^/10

persistence spyware stealer upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\dwm.exe"	c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1992-55-0x0000000000400000-0x000000000048A000-memory.dmp	upx
behavioral1/memory/764-59-0x0000000000400000-0x000000000048A000-memory.dmp	upx
behavioral1/memory/1992-61-0x0000000000400000-0x000000000048A000-memory.dmp	upx
behavioral1/memory/1956-65-0x0000000000400000-0x000000000048A000-memory.dmp	upx

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

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 764	1992	c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe	28
PID 1992 wrote to memory of 764	1992	c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe	28
PID 1992 wrote to memory of 764	1992	c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe	28
PID 1992 wrote to memory of 764	1992	c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe	28
PID 1992 wrote to memory of 1956	1992	c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe	30
PID 1992 wrote to memory of 1956	1992	c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe	30
PID 1992 wrote to memory of 1956	1992	c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe	30
PID 1992 wrote to memory of 1956	1992	c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe	30

C:\Users\Admin\AppData\Local\Temp\c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe
"C:\Users\Admin\AppData\Local\Temp\c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Users\Admin\AppData\Local\Temp\c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe
  C:\Users\Admin\AppData\Local\Temp\c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  PID:764
- C:\Users\Admin\AppData\Local\Temp\c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe
  C:\Users\Admin\AppData\Local\Temp\c2a2fcf04e42cc3aa1d32cbcbbdad1f0c52e421690ffe0db4db35789cd2d3b62.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  PID:1956

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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/764-59-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/764-60-0x00000000005A0000-0x00000000005B6000-memory.dmp

Filesize
88KB

Download
memory/1956-65-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/1956-66-0x0000000000660000-0x0000000000676000-memory.dmp

Filesize
88KB

Download
memory/1992-54-0x0000000076651000-0x0000000076653000-memory.dmp

Filesize
8KB

Download
memory/1992-55-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/1992-56-0x0000000000650000-0x0000000000666000-memory.dmp

Filesize
88KB

Download
memory/1992-61-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/1992-62-0x0000000000650000-0x0000000000666000-memory.dmp

Filesize
88KB

Download