10d3ebe25e0249c65fe82295865e2730021876ed8d3bccc3e88242e452d4c2cb

General

Target

Complaint-922836043-02182021.xls
Size

142KB
MD5

1596dc98f96feae955a680a87024dd2d
SHA1

c61de22e6d9ff5555016b8259ed0d0421893ca10
SHA256

10d3ebe25e0249c65fe82295865e2730021876ed8d3bccc3e88242e452d4c2cb
SHA512

d7d1ad7110b8c42922ae8e37c042230422a41cded1b90ff38d3f965fac3bd51b89b9cafcf8f04ab0228c9fac3290969496224bc176a44f23c9d0ef30e53867cc
SSDEEP

3072:GcPiTQAVW/89BQnmlcGvgZ6Gr3J8YUOMRt/BI/s/C/i/R/7/3/UQ/OhP/2/a/1/V:GcPiTQAVW/89BQnmlcGvgZ7r3J8YUOMU

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://rzminc.com/xklyulyijvn/44951611444560200000.dat

xlm40.dropper

http://pathinanchilearthmovers.com/eznwcdhx/44951611444560200000.dat

xlm40.dropper

http://jugueterialatorre.com.ar/xjzpfwc/44951611444560200000.dat

xlm40.dropper

http://rzminc.com/fdzgprclatqo/44951611444560200000.dat

xlm40.dropper

http://biblicalisraeltours.com/otmchxmxeg/44951611444560200000.dat

Signatures

Process spawned unexpected child process 5 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

rundll32.exerundll32.exerundll32.exerundll32.exerundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3384	1208	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4472	1208	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4120	1208	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2744	1208	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3812	1208	rundll32.exe	EXCEL.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

Processes:

EXCEL.EXE

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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1208 EXCEL.EXE

Suspicious use of SetWindowsHookEx 17 IoCs

Processes:

EXCEL.EXE

pid	process
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE
1208	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1208 wrote to memory of 3384	1208	EXCEL.EXE	rundll32.exe
PID 1208 wrote to memory of 3384	1208	EXCEL.EXE	rundll32.exe
PID 1208 wrote to memory of 4472	1208	EXCEL.EXE	rundll32.exe
PID 1208 wrote to memory of 4472	1208	EXCEL.EXE	rundll32.exe
PID 1208 wrote to memory of 4120	1208	EXCEL.EXE	rundll32.exe
PID 1208 wrote to memory of 4120	1208	EXCEL.EXE	rundll32.exe
PID 1208 wrote to memory of 2744	1208	EXCEL.EXE	rundll32.exe
PID 1208 wrote to memory of 2744	1208	EXCEL.EXE	rundll32.exe
PID 1208 wrote to memory of 3812	1208	EXCEL.EXE	rundll32.exe
PID 1208 wrote to memory of 3812	1208	EXCEL.EXE	rundll32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Complaint-922836043-02182021.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1208

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\JDFR.hdfgr,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3384

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\JDFR.hdfgr1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:4472

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\JDFR.hdfgr2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:4120

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\JDFR.hdfgr3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2744

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\JDFR.hdfgr4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3812

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1208-145-0x00007FF8314D0000-0x00007FF8314E0000-memory.dmp

Filesize
64KB

Download
memory/1208-132-0x00007FF8314D0000-0x00007FF8314E0000-memory.dmp

Filesize
64KB

Download
memory/1208-134-0x00007FF8314D0000-0x00007FF8314E0000-memory.dmp

Filesize
64KB

Download
memory/1208-135-0x00007FF8314D0000-0x00007FF8314E0000-memory.dmp

Filesize
64KB

Download
memory/1208-148-0x00007FF8314D0000-0x00007FF8314E0000-memory.dmp

Filesize
64KB

Download
memory/1208-137-0x00007FF82F050000-0x00007FF82F060000-memory.dmp

Filesize
64KB

Download
memory/1208-133-0x00007FF8314D0000-0x00007FF8314E0000-memory.dmp

Filesize
64KB

Download
memory/1208-138-0x00007FF82F050000-0x00007FF82F060000-memory.dmp

Filesize
64KB

Download
memory/1208-136-0x00007FF8314D0000-0x00007FF8314E0000-memory.dmp

Filesize
64KB

Download
memory/1208-147-0x00007FF8314D0000-0x00007FF8314E0000-memory.dmp

Filesize
64KB

Download
memory/1208-146-0x00007FF8314D0000-0x00007FF8314E0000-memory.dmp

Filesize
64KB

Download
memory/2744-142-0x0000000000000000-mapping.dmp

Download
memory/3384-139-0x0000000000000000-mapping.dmp

Download
memory/3812-143-0x0000000000000000-mapping.dmp

Download
memory/4120-141-0x0000000000000000-mapping.dmp

Download
memory/4472-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads