a59149fcacf8a5c564f48dc446b7cef1203a0ab92fec9dead2b3645bb24d3e51

General

Target

a59149fcacf8a5c564f48dc446b7cef1203a0ab92fec9dead2b3645bb24d3e51.xlsm
Size

83KB
MD5

0f9d8eef6e2b87a3759a45e1e127d94a
SHA1

1333efaa172a9d858b686482c75d4d4b13582a9b
SHA256

a59149fcacf8a5c564f48dc446b7cef1203a0ab92fec9dead2b3645bb24d3e51
SHA512

82e63db9145621fa07011a36f82cd603c40a8ca9dfa6408318923eec182d89acd3e552d19bbe9fcfdd4127bcb05bcef0de5ed4f1a38577d2c05b0844adc6a499

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://mail.emilyanncain.com/cgi-bin/A7NT3ENvn/

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

rundll32.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	2676	1628	rundll32.exe	EXCEL.EXE

Blocklisted process makes network request 3 IoCs

Processes:

rundll32.exe

flow pid process

41 4848 rundll32.exe
42 4848 rundll32.exe
44 4848 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

2676 rundll32.exe
4804 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Damkfsm\zifaghi.qom rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	pid	process
41	4848	rundll32.exe
42	4848	rundll32.exe
44	4848	rundll32.exe

pid	process
2676	rundll32.exe
4804	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Damkfsm\zifaghi.qom	rundll32.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 opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	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

1628 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

4848 rundll32.exe
4848 rundll32.exe

pid	process
4848	rundll32.exe
4848	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 1628 wrote to memory of 2676	1628	EXCEL.EXE	rundll32.exe
PID 1628 wrote to memory of 2676	1628	EXCEL.EXE	rundll32.exe
PID 1628 wrote to memory of 2676	1628	EXCEL.EXE	rundll32.exe
PID 2676 wrote to memory of 4804	2676	rundll32.exe	rundll32.exe
PID 2676 wrote to memory of 4804	2676	rundll32.exe	rundll32.exe
PID 2676 wrote to memory of 4804	2676	rundll32.exe	rundll32.exe
PID 4804 wrote to memory of 4852	4804	rundll32.exe	rundll32.exe
PID 4804 wrote to memory of 4852	4804	rundll32.exe	rundll32.exe
PID 4804 wrote to memory of 4852	4804	rundll32.exe	rundll32.exe
PID 4852 wrote to memory of 4848	4852	rundll32.exe	rundll32.exe
PID 4852 wrote to memory of 4848	4852	rundll32.exe	rundll32.exe
PID 4852 wrote to memory of 4848	4852	rundll32.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\a59149fcacf8a5c564f48dc446b7cef1203a0ab92fec9dead2b3645bb24d3e51.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1628

C:\Windows\SysWow64\rundll32.exe
C:\Windows\SysWow64\rundll32.exe ..\erum.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2676

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\erum.ocx",DllRegisterServer
3⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4804

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Damkfsm\zifaghi.qom",tkkwisGcG
4⤵
- Suspicious use of WriteProcessMemory
PID:4852

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Damkfsm\zifaghi.qom",DllRegisterServer
5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:4848

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

2

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\erum.ocx
MD5
fc572cbbebb9865a9b574667f8f78036

SHA1
55b6d2a58ff83e6e7299c615358d70ef5d8b0dc5

SHA256
c43db4923037b57ec6453c192decc50b576d005b8577d20b3b1298de9877170b

SHA512
de99d46452ad26cb51b743ea5d28c2b89b3ca8d6121c71967a26d50491538a40ad4c39a2eee984b4d93bb4ab66f881666d6a5701ba2c0b4925758e7a6a54001b

Download Submit
\Users\Admin\erum.ocx
MD5
fc572cbbebb9865a9b574667f8f78036

SHA1
55b6d2a58ff83e6e7299c615358d70ef5d8b0dc5

SHA256
c43db4923037b57ec6453c192decc50b576d005b8577d20b3b1298de9877170b

SHA512
de99d46452ad26cb51b743ea5d28c2b89b3ca8d6121c71967a26d50491538a40ad4c39a2eee984b4d93bb4ab66f881666d6a5701ba2c0b4925758e7a6a54001b

Download Submit
\Users\Admin\erum.ocx
MD5
fc572cbbebb9865a9b574667f8f78036

SHA1
55b6d2a58ff83e6e7299c615358d70ef5d8b0dc5

SHA256
c43db4923037b57ec6453c192decc50b576d005b8577d20b3b1298de9877170b

SHA512
de99d46452ad26cb51b743ea5d28c2b89b3ca8d6121c71967a26d50491538a40ad4c39a2eee984b4d93bb4ab66f881666d6a5701ba2c0b4925758e7a6a54001b

Download Submit
memory/1628-119-0x0000021084FE0000-0x0000021084FE2000-memory.dmp

Filesize
8KB

Download
memory/1628-116-0x00007FF836310000-0x00007FF836320000-memory.dmp

Filesize
64KB

Download
memory/1628-120-0x0000021084FE0000-0x0000021084FE2000-memory.dmp

Filesize
8KB

Download
memory/1628-121-0x00007FF836310000-0x00007FF836320000-memory.dmp

Filesize
64KB

Download
memory/1628-122-0x0000021084FE0000-0x0000021084FE2000-memory.dmp

Filesize
8KB

Download
memory/1628-174-0x0000021084FE0000-0x0000021084FE2000-memory.dmp

Filesize
8KB

Download
memory/1628-175-0x0000021084FE0000-0x0000021084FE2000-memory.dmp

Filesize
8KB

Download
memory/1628-115-0x00007FF836310000-0x00007FF836320000-memory.dmp

Filesize
64KB

Download
memory/1628-118-0x00007FF836310000-0x00007FF836320000-memory.dmp

Filesize
64KB

Download
memory/1628-117-0x00007FF836310000-0x00007FF836320000-memory.dmp

Filesize
64KB

Download
memory/2676-259-0x0000000000000000-mapping.dmp

Download
memory/4804-264-0x0000000000000000-mapping.dmp

Download
memory/4848-283-0x0000000000000000-mapping.dmp

Download
memory/4852-278-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads