feef7c585a67e368ce1a514158d6abc280e502b0408ad8b589d83687360ff11f

Analysis

max time kernel
125s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
29-06-2023 21:58

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General

Target

2411b23bab7703e94897573f3758e1849fdc6f407ea1d1e5da20a4e07ecf3c09.dll
Size

473KB
MD5

3d051c701fbdf002650f8f90267ee16d
SHA1

e835e5d57c769cb86e9e61ff8e28d7bad1421cdb
SHA256

2411b23bab7703e94897573f3758e1849fdc6f407ea1d1e5da20a4e07ecf3c09
SHA512

4018efc79da22eb577a889b608c662ae5d59fc6c8dead939fd814675c08fdd0ac372aa132357451fe4231f592a13ad9b3dfca0f2a12ef9946601a277c18a7dde
SSDEEP

6144:nYGKcdvv6azsXOkDriqiN0DaSCrIB28UJ1F5FRpS0Xu0X:YGKKDADhi+Da3rIByJ13pRxX

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

SndVol.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	SndVol.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\postventralImpetuosityJunglewood = "regsvr32 /s \"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\CostumicEuxineUndernatural\\postventralImpetuosityJunglewood.dll\" "	SndVol.exe

Drops file in System32 directory 8 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{BEC31B9B-C247-4305-A21E-F1E300A502DB}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{6085E4E8-B090-4321-97F2-B6F1206308E5}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{6F3A71D7-BEE8-4D8F-B1C9-3D12277FAD95}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{830F875F-A2ED-41C4-8C95-B46BCF5D9C19}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{E30A5AD1-DAC9-4A79-8A23-CD33C837CB01}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{86FBBA72-B337-4DD2-998C-9AD2F689D57C}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{4E9DA159-C581-49DD-8C5F-67BD1468244E}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{5CDEBBC0-EEC0-4A74-BA04-4C4CBCF104EE}.catalogItem	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 4840 set thread context of 456 4840 regsvr32.exe SndVol.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

SndVol.exe

pid process

456 SndVol.exe
456 SndVol.exe
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs

Processes:

regsvr32.exe

pid process

4840 regsvr32.exe

description	pid	process	target process
PID 4840 set thread context of 456	4840	regsvr32.exe	SndVol.exe

pid	process
456	SndVol.exe
456	SndVol.exe

pid	process
4840	regsvr32.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 4804 wrote to memory of 4840	4804	regsvr32.exe	regsvr32.exe
PID 4804 wrote to memory of 4840	4804	regsvr32.exe	regsvr32.exe
PID 4804 wrote to memory of 4840	4804	regsvr32.exe	regsvr32.exe
PID 4840 wrote to memory of 456	4840	regsvr32.exe	SndVol.exe
PID 4840 wrote to memory of 456	4840	regsvr32.exe	SndVol.exe
PID 4840 wrote to memory of 456	4840	regsvr32.exe	SndVol.exe
PID 4840 wrote to memory of 456	4840	regsvr32.exe	SndVol.exe
PID 4840 wrote to memory of 456	4840	regsvr32.exe	SndVol.exe
PID 4840 wrote to memory of 456	4840	regsvr32.exe	SndVol.exe
PID 4840 wrote to memory of 456	4840	regsvr32.exe	SndVol.exe
PID 4840 wrote to memory of 456	4840	regsvr32.exe	SndVol.exe
PID 4840 wrote to memory of 456	4840	regsvr32.exe	SndVol.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2411b23bab7703e94897573f3758e1849fdc6f407ea1d1e5da20a4e07ecf3c09.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4804

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\2411b23bab7703e94897573f3758e1849fdc6f407ea1d1e5da20a4e07ecf3c09.dll
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of WriteProcessMemory
PID:4840

C:\Windows\SysWOW64\SndVol.exe
"C:\Windows\SysWOW64\SndVol.exe"
3⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:456

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
PID:3372

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/456-133-0x0000000000C60000-0x0000000000C6F000-memory.dmp

Filesize
60KB

Download
memory/456-137-0x0000000000C60000-0x0000000000C6F000-memory.dmp

Filesize
60KB

Download
memory/456-140-0x0000000000C60000-0x0000000000C6F000-memory.dmp

Filesize
60KB

Download