d7818be62c9a6e0eefdc0fd0a685debddaa7d58bdc9140d59be286e46b7bb766

General

Target

d7818be62c9a6e0eefdc0fd0a685debddaa7d58bdc9140d59be286e46b7bb766.xlsm
Size

83KB
MD5

34e0a4e56f8909079a089d24df66f342
SHA1

c2bdc0bcaf067faa30d06fdd306bffe84142bd00
SHA256

d7818be62c9a6e0eefdc0fd0a685debddaa7d58bdc9140d59be286e46b7bb766
SHA512

144bc39853b61bd2043a037bba37f11bf3ed43e4ea19140fa2decfae007794b4899fc85e62e5987ca4c0a004139e96a40f4f8d056d0efb3d46e55f49c596a550

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://recont.com/n8xbqb/lwEORjcJYPKCNQ/

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	3044	3784	rundll32.exe	EXCEL.EXE

suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata
Blocklisted process makes network request 3 IoCs

Processes:

rundll32.exe

flow pid process

36 1508 rundll32.exe
37 1508 rundll32.exe
39 1508 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

3044 rundll32.exe
3392 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Qdnaqnpllca\iuhvl.whx 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
36	1508	rundll32.exe
37	1508	rundll32.exe
39	1508	rundll32.exe

pid	process
3044	rundll32.exe
3392	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Qdnaqnpllca\iuhvl.whx	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

3784 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

1508 rundll32.exe
1508 rundll32.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3784 EXCEL.EXE
3784 EXCEL.EXE

pid	process
1508	rundll32.exe
1508	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 3784 wrote to memory of 3044	3784	EXCEL.EXE	rundll32.exe
PID 3784 wrote to memory of 3044	3784	EXCEL.EXE	rundll32.exe
PID 3784 wrote to memory of 3044	3784	EXCEL.EXE	rundll32.exe
PID 3044 wrote to memory of 3392	3044	rundll32.exe	rundll32.exe
PID 3044 wrote to memory of 3392	3044	rundll32.exe	rundll32.exe
PID 3044 wrote to memory of 3392	3044	rundll32.exe	rundll32.exe
PID 3392 wrote to memory of 2808	3392	rundll32.exe	rundll32.exe
PID 3392 wrote to memory of 2808	3392	rundll32.exe	rundll32.exe
PID 3392 wrote to memory of 2808	3392	rundll32.exe	rundll32.exe
PID 2808 wrote to memory of 1508	2808	rundll32.exe	rundll32.exe
PID 2808 wrote to memory of 1508	2808	rundll32.exe	rundll32.exe
PID 2808 wrote to memory of 1508	2808	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\d7818be62c9a6e0eefdc0fd0a685debddaa7d58bdc9140d59be286e46b7bb766.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3784

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:3044

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:3392

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Qdnaqnpllca\iuhvl.whx",zTahVnzQrho
4⤵
- Suspicious use of WriteProcessMemory
PID:2808

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Qdnaqnpllca\iuhvl.whx",DllRegisterServer
5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:1508

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
98219efe69af5b195bab0b37568d0fd2

SHA1
39e5d9a5de0b86e433b50e5687b38b11772a4ced

SHA256
09da84305105605ef137c1675f6ca7383fd08ab9a32c3837aa818711f4fa090a

SHA512
f39f668860f7db8a44c0b9e48936dff4267d1bc933ec1e99212b8781db30506e388d261f93ef68ea6f313b4b0c65dc9582be4c6413dd823c6ee850155fe974b8

Download Submit
\Users\Admin\erum.ocx

MD5
98219efe69af5b195bab0b37568d0fd2

SHA1
39e5d9a5de0b86e433b50e5687b38b11772a4ced

SHA256
09da84305105605ef137c1675f6ca7383fd08ab9a32c3837aa818711f4fa090a

SHA512
f39f668860f7db8a44c0b9e48936dff4267d1bc933ec1e99212b8781db30506e388d261f93ef68ea6f313b4b0c65dc9582be4c6413dd823c6ee850155fe974b8

Download Submit
\Users\Admin\erum.ocx

MD5
98219efe69af5b195bab0b37568d0fd2

SHA1
39e5d9a5de0b86e433b50e5687b38b11772a4ced

SHA256
09da84305105605ef137c1675f6ca7383fd08ab9a32c3837aa818711f4fa090a

SHA512
f39f668860f7db8a44c0b9e48936dff4267d1bc933ec1e99212b8781db30506e388d261f93ef68ea6f313b4b0c65dc9582be4c6413dd823c6ee850155fe974b8

Download Submit
memory/1508-282-0x0000000000000000-mapping.dmp

Download
memory/2808-277-0x0000000000000000-mapping.dmp

Download
memory/3044-251-0x0000000000000000-mapping.dmp

Download
memory/3392-256-0x0000000000000000-mapping.dmp

Download
memory/3784-118-0x00007FF7E4E20000-0x00007FF7E4E30000-memory.dmp

Filesize
64KB

Download
memory/3784-127-0x00007FF7E4E20000-0x00007FF7E4E30000-memory.dmp

Filesize
64KB

Download
memory/3784-121-0x000001E3FC380000-0x000001E3FC382000-memory.dmp

Filesize
8KB

Download
memory/3784-119-0x000001E3FC380000-0x000001E3FC382000-memory.dmp

Filesize
8KB

Download
memory/3784-120-0x000001E3FC380000-0x000001E3FC382000-memory.dmp

Filesize
8KB

Download
memory/3784-115-0x00007FF7E4E20000-0x00007FF7E4E30000-memory.dmp

Filesize
64KB

Download
memory/3784-117-0x00007FF7E4E20000-0x00007FF7E4E30000-memory.dmp

Filesize
64KB

Download
memory/3784-116-0x00007FF7E4E20000-0x00007FF7E4E30000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads