42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba

Analysis

max time kernel
141s
max time network
171s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 08:47

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General

Target

42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe
Size

83KB
MD5

42f91fbe61a133d94b2750bff131c002
SHA1

6f7f80f97c0aa2bbae3a055d0e9fbaeee6e6aa95
SHA256

42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba
SHA512

ce672b8a4d0657bd7e4f19c741b08f4c2f17b18595424b6f714bf7e1d4193f2850205c4ab3490daaf8efeac983fe1fc860a7d11b79ace0e858d88ba14b3dc926
SSDEEP

1536:5AK/Eg7V/tYsadOXWP/9LQHyYiTspEhz9921ToWmWAqA:mkEgp/tYs3XWPVLBoWb2WgAx

Score

8^/10

discovery persistence upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1676-132-0x0000000000400000-0x000000000042A000-memory.dmp	upx
behavioral2/memory/1676-133-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run	42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\10-1-5-3 = "c:\\program files\\Webdialer\\42c748f56443a0adad7f1d7305b3a -m"	42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 2 IoCs

Processes:

42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe

description	ioc	process
File created	\??\c:\program files\Webdialer\42c748f56443a0adad7f1d7305b3a	42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe
File opened for modification	\??\c:\program files\Webdialer\42c748f56443a0adad7f1d7305b3a	42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe

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

System Information Discovery
T1082
Suspicious behavior: LoadsDriver 6 IoCs

Processes:

pid

4
4
4
4
4
656
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe

pid process

1676 42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe

pid process

1676 42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe

pid
4
4
4
4
4
656

pid	process
1676	42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe

pid	process
1676	42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe

C:\Users\Admin\AppData\Local\Temp\42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe
"C:\Users\Admin\AppData\Local\Temp\42c748f56443a0adad7f1d7305b3aeab96714088786c6db6871588c8f1037fba.exe"
1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1676

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1676-132-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1676-133-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download