23abd1bc3a2a3648bb065eef6c57ef75b23d3509a1e026b5e5f0b13910935c9f

General

Target

8956c5c90ff841df626b0e41131b67b8.exe
Size

245KB
MD5

8956c5c90ff841df626b0e41131b67b8
SHA1

30e78b0d44a73eeef63670d15b2c5c3c8c2b565f
SHA256

23abd1bc3a2a3648bb065eef6c57ef75b23d3509a1e026b5e5f0b13910935c9f
SHA512

9d125f2b329015eb2eaec0ea3a6a1b8a9f1d4c9cb11982c1a3aaea53d96de9ad49656b632f515d613ea87ee7fbcd7b27f40f628efdd9a023d97c033d03906b57
SSDEEP

6144:rnKD7cU3EVwcH0Ay5/MbUn36g/vsAdRKBrK26g0O/3Nx:rnKDFKwZAyVp3fvvRGsghdx

Score

7^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000600000002321b-4.dat	acprotect

Executes dropped EXE 1 IoCs

pid	Process
1456	DbgStart.exe

Loads dropped DLL 1 IoCs

pid	Process
3596	Regsvr32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000600000002321b-4.dat	upx
behavioral2/memory/3596-6-0x0000000000400000-0x0000000000470000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\AVDebugPrv\DbgStart.exe	8956c5c90ff841df626b0e41131b67b8.exe
File created	C:\Program Files\AVDebugPrv\MSOAntivirus.dll	8956c5c90ff841df626b0e41131b67b8.exe
File created	C:\Program Files\AVDebugPrv\debugprv.dll	8956c5c90ff841df626b0e41131b67b8.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE

Modifies registry class 18 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\msoantivirus.MsoTest\Clsid	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F586EF8D-C891-1D89-DF68-680EB8036BA8}\ProgID\ = "msoantivirus.MsoTest"	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F586EF8D-C891-1D89-DF68-680EB8036BA8}\AppID = "{F586EF8D-C891-1D89-DF68-680EB8036BA8}"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{F586EF8D-C891-1D89-DF68-680EB8036BA8}	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\msoantivirus.MsoTest\	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\msoantivirus.MsoTest\Clsid\ = "{F586EF8D-C891-1D89-DF68-680EB8036BA8}"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F586EF8D-C891-1D89-DF68-680EB8036BA8}\ProgID	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Component Categories\{56FFCC30-D398-11D0-B2AE-00A0C908FA49}	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{F586EF8D-C891-1D89-DF68-680EB8036BA8}\	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F586EF8D-C891-1D89-DF68-680EB8036BA8}	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F586EF8D-C891-1D89-DF68-680EB8036BA8}\InprocServer32\ThreadingModel = "Apartment"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\msoantivirus.MsoTest	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F586EF8D-C891-1D89-DF68-680EB8036BA8}\Implemented Categories	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F586EF8D-C891-1D89-DF68-680EB8036BA8}\Implemented Categories\{56FFCC30-D398-11D0-B2AE-00A0C908FA49}	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F586EF8D-C891-1D89-DF68-680EB8036BA8}\	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F586EF8D-C891-1D89-DF68-680EB8036BA8}\InprocServer32	Regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F586EF8D-C891-1D89-DF68-680EB8036BA8}\InprocServer32\ = "C:\\PROGRA~1\\AVDEBU~1\\MSOANT~1.DLL"	Regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Component Categories	Regsvr32.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
3620	WINWORD.EXE
3620	WINWORD.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3620	WINWORD.EXE
3620	WINWORD.EXE
3620	WINWORD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2832 wrote to memory of 3596	2832	8956c5c90ff841df626b0e41131b67b8.exe	85
PID 2832 wrote to memory of 3596	2832	8956c5c90ff841df626b0e41131b67b8.exe	85
PID 2832 wrote to memory of 3596	2832	8956c5c90ff841df626b0e41131b67b8.exe	85
PID 3596 wrote to memory of 1456	3596	Regsvr32.exe	86
PID 3596 wrote to memory of 1456	3596	Regsvr32.exe	86
PID 3596 wrote to memory of 1456	3596	Regsvr32.exe	86

C:\Users\Admin\AppData\Local\Temp\8956c5c90ff841df626b0e41131b67b8.exe
"C:\Users\Admin\AppData\Local\Temp\8956c5c90ff841df626b0e41131b67b8.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2832
- C:\Windows\SysWOW64\Regsvr32.exe
  C:\Windows\System32\Regsvr32.exe /s "C:\Program Files\AVDebugPrv\msoantivirus.dll"
  2⤵
  - Loads dropped DLL
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3596
- - C:\Program Files\AVDebugPrv\DbgStart.exe
    "C:\Program Files\AVDebugPrv\DbgStart.exe"
    3⤵
    - Executes dropped EXE
    PID:1456

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /Automation -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\AVDebugPrv\DbgStart.exe

Filesize
40KB

MD5
4645113bbb13ca12d1c85d7c1c063fe7

SHA1
e67df7ea80b92ffb3074179c1a0c28c063aaef00

SHA256
14d28939febd334b95a0ff5addb6d0bafec5a9a94f6737df691ccd40bad99872

SHA512
7ae6a630f035041630283f9a355b306e90baa9e4570cfd79aa5e6e303537d4edf2e84ed42b432f15b9650a9901cbbefac8d8bf2ebe3b9afb79c0ee28c1bcd5eb

Download Submit
C:\Program Files\AVDebugPrv\msoantivirus.dll

Filesize
169KB

MD5
2fa0941fbf4536dfe1aad5384419b48c

SHA1
d2f9e14bcbf652401e5c12c6786e31c78c5be877

SHA256
13e2b1b31df2604da83dc86778c91866cc82fd1372ce84d763c68ee5078af7da

SHA512
a7bc6c82a639a84ce4d5f04c1e5b95551240995185f3f7695f089eb6ef13765185c0573a61d9bb445da82a16f0e0fdc147f24facf727de32cc71b26ecb265768

Download Submit
memory/2832-0-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2832-36-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3596-6-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/3596-9-0x0000000003200000-0x0000000003201000-memory.dmp

Filesize
4KB

Download
memory/3620-14-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download
memory/3620-17-0x00007FFC102D0000-0x00007FFC102E0000-memory.dmp

Filesize
64KB

Download
memory/3620-16-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download
memory/3620-19-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download
memory/3620-20-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download
memory/3620-23-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download
memory/3620-24-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download
memory/3620-26-0x00007FFC0DAD0000-0x00007FFC0DAE0000-memory.dmp

Filesize
64KB

Download
memory/3620-25-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download
memory/3620-22-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download
memory/3620-27-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download
memory/3620-21-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download
memory/3620-18-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download
memory/3620-15-0x00007FFC102D0000-0x00007FFC102E0000-memory.dmp

Filesize
64KB

Download
memory/3620-13-0x00007FFC102D0000-0x00007FFC102E0000-memory.dmp

Filesize
64KB

Download
memory/3620-28-0x00007FFC0DAD0000-0x00007FFC0DAE0000-memory.dmp

Filesize
64KB

Download
memory/3620-11-0x00007FFC102D0000-0x00007FFC102E0000-memory.dmp

Filesize
64KB

Download
memory/3620-10-0x00007FFC102D0000-0x00007FFC102E0000-memory.dmp

Filesize
64KB

Download
memory/3620-12-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download
memory/3620-40-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download
memory/3620-42-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download
memory/3620-61-0x00007FFC102D0000-0x00007FFC102E0000-memory.dmp

Filesize
64KB

Download
memory/3620-62-0x00007FFC102D0000-0x00007FFC102E0000-memory.dmp

Filesize
64KB

Download
memory/3620-63-0x00007FFC102D0000-0x00007FFC102E0000-memory.dmp

Filesize
64KB

Download
memory/3620-64-0x00007FFC102D0000-0x00007FFC102E0000-memory.dmp

Filesize
64KB

Download
memory/3620-65-0x00007FFC50250000-0x00007FFC50445000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads