e1f0eb778a09fec529aa7aff9d665828b18007c8e52d62565a552f606c04442f

General

Target

e1f0eb778a09fec529aa7aff9d665828b18007c8e52d62565a552f606c04442f.xlsm
Size

83KB
MD5

a9aea9d70fa64583449e1719825a5f0d
SHA1

84f0ef7106464cedb4f1d4665f5c64897ba087e6
SHA256

e1f0eb778a09fec529aa7aff9d665828b18007c8e52d62565a552f606c04442f
SHA512

f65dfbaa0d55e0402f4cb02795b1d9e7ef7c539832e90127f518e28bfbbb3f53a54aff6d2d8f883235b45250af0ef7afcfa1cc086a01380d23936f636994752a

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://badmakeup.biz/dhl/3ez4GMS65Gk6Bgxd/

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	2696	2660	rundll32.exe	EXCEL.EXE

Blocklisted process makes network request 3 IoCs

Processes:

rundll32.exe

flow pid process

37 3652 rundll32.exe
38 3652 rundll32.exe
39 3652 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

2696 rundll32.exe
2392 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Pndfdelkt\yichttpkepdi.xha 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
37	3652	rundll32.exe
38	3652	rundll32.exe
39	3652	rundll32.exe

pid	process
2696	rundll32.exe
2392	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Pndfdelkt\yichttpkepdi.xha	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 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

2660 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

3652 rundll32.exe
3652 rundll32.exe

pid	process
3652	rundll32.exe
3652	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2660	EXCEL.EXE
2660	EXCEL.EXE
2660	EXCEL.EXE
2660	EXCEL.EXE
2660	EXCEL.EXE
2660	EXCEL.EXE
2660	EXCEL.EXE
2660	EXCEL.EXE
2660	EXCEL.EXE
2660	EXCEL.EXE
2660	EXCEL.EXE
2660	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 2660 wrote to memory of 2696	2660	EXCEL.EXE	rundll32.exe
PID 2660 wrote to memory of 2696	2660	EXCEL.EXE	rundll32.exe
PID 2660 wrote to memory of 2696	2660	EXCEL.EXE	rundll32.exe
PID 2696 wrote to memory of 2392	2696	rundll32.exe	rundll32.exe
PID 2696 wrote to memory of 2392	2696	rundll32.exe	rundll32.exe
PID 2696 wrote to memory of 2392	2696	rundll32.exe	rundll32.exe
PID 2392 wrote to memory of 3620	2392	rundll32.exe	rundll32.exe
PID 2392 wrote to memory of 3620	2392	rundll32.exe	rundll32.exe
PID 2392 wrote to memory of 3620	2392	rundll32.exe	rundll32.exe
PID 3620 wrote to memory of 3652	3620	rundll32.exe	rundll32.exe
PID 3620 wrote to memory of 3652	3620	rundll32.exe	rundll32.exe
PID 3620 wrote to memory of 3652	3620	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\e1f0eb778a09fec529aa7aff9d665828b18007c8e52d62565a552f606c04442f.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2660

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:2696

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:2392

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Pndfdelkt\yichttpkepdi.xha",vLJKaYD
4⤵
- Suspicious use of WriteProcessMemory
PID:3620

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Pndfdelkt\yichttpkepdi.xha",DllRegisterServer
5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:3652

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\erum.ocx

MD5
f99cf33e5b8722656edc9c796f24ddd6

SHA1
72a2b4d6b2c80019a4d58068c23b7fd9aae62a61

SHA256
32a3c125847d9c9f0a692c286bbf1ded3a22afe7dda116b6199fccdddaa5faf2

SHA512
06d4134021ed359a2f0eb3d527592fa0bf911f342cc22324560dfe803e13af5ddf7ee0a6c5e981711d4136c4a9c6d711dac154373c0f305801479843a4f1016d

Download Submit
\Users\Admin\erum.ocx

MD5
f99cf33e5b8722656edc9c796f24ddd6

SHA1
72a2b4d6b2c80019a4d58068c23b7fd9aae62a61

SHA256
32a3c125847d9c9f0a692c286bbf1ded3a22afe7dda116b6199fccdddaa5faf2

SHA512
06d4134021ed359a2f0eb3d527592fa0bf911f342cc22324560dfe803e13af5ddf7ee0a6c5e981711d4136c4a9c6d711dac154373c0f305801479843a4f1016d

Download Submit
\Users\Admin\erum.ocx

MD5
f99cf33e5b8722656edc9c796f24ddd6

SHA1
72a2b4d6b2c80019a4d58068c23b7fd9aae62a61

SHA256
32a3c125847d9c9f0a692c286bbf1ded3a22afe7dda116b6199fccdddaa5faf2

SHA512
06d4134021ed359a2f0eb3d527592fa0bf911f342cc22324560dfe803e13af5ddf7ee0a6c5e981711d4136c4a9c6d711dac154373c0f305801479843a4f1016d

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memory/2392-260-0x0000000000000000-mapping.dmp

Download
memory/2660-118-0x00007FF893410000-0x00007FF893420000-memory.dmp

Filesize
64KB

Download
memory/2660-120-0x000001DC5CBF0000-0x000001DC5CBF2000-memory.dmp

Filesize
8KB

Download
memory/2660-121-0x00007FF893410000-0x00007FF893420000-memory.dmp

Filesize
64KB

Download
memory/2660-122-0x000001DC5CBF0000-0x000001DC5CBF2000-memory.dmp

Filesize
8KB

Download
memory/2660-119-0x000001DC5CBF0000-0x000001DC5CBF2000-memory.dmp

Filesize
8KB

Download
memory/2660-115-0x00007FF893410000-0x00007FF893420000-memory.dmp

Filesize
64KB

Download
memory/2660-117-0x00007FF893410000-0x00007FF893420000-memory.dmp

Filesize
64KB

Download
memory/2660-116-0x00007FF893410000-0x00007FF893420000-memory.dmp

Filesize
64KB

Download
memory/2696-255-0x0000000000000000-mapping.dmp

Download
memory/3620-275-0x0000000000000000-mapping.dmp

Download
memory/3652-280-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads