8bec2125ada9f365ce9979eb8334ab12136f40458a47969f00c5d852f48c03a6

General

Target

8bec2125ada9f365ce9979eb8334ab12136f40458a47969f00c5d852f48c03a6.xlsm
Size

83KB
MD5

6ad45f1e5b688b5b8cdc0d97f32d1fba
SHA1

bf1cdd7cfd2940f24489bafd3945713506772e30
SHA256

8bec2125ada9f365ce9979eb8334ab12136f40458a47969f00c5d852f48c03a6
SHA512

1badc13b0b088c786616e1600865674c7a3801c7485de60b5c548f40993cb99542d83107e82c9948fccbfd2a65e0ac0c039cef0779094def500b76b4b4fe7051

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://zml.laneso.com/packet/AlvJ8OdtSYEeeCQP/

xlm40.dropper

http://ostadsarma.com/wp-admin/JNgASjNC/

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	3228	2504	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

38 3032 rundll32.exe
39 3032 rundll32.exe
41 3032 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

3228 rundll32.exe
3068 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Hpmtamtmtpnbto\icbi.yic 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
38	3032	rundll32.exe
39	3032	rundll32.exe
41	3032	rundll32.exe

pid	process
3228	rundll32.exe
3068	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Hpmtamtmtpnbto\icbi.yic	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2504 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

3032 rundll32.exe
3032 rundll32.exe

pid	process
3032	rundll32.exe
3032	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 2504 wrote to memory of 3228	2504	EXCEL.EXE	rundll32.exe
PID 2504 wrote to memory of 3228	2504	EXCEL.EXE	rundll32.exe
PID 2504 wrote to memory of 3228	2504	EXCEL.EXE	rundll32.exe
PID 3228 wrote to memory of 3068	3228	rundll32.exe	rundll32.exe
PID 3228 wrote to memory of 3068	3228	rundll32.exe	rundll32.exe
PID 3228 wrote to memory of 3068	3228	rundll32.exe	rundll32.exe
PID 3068 wrote to memory of 3840	3068	rundll32.exe	rundll32.exe
PID 3068 wrote to memory of 3840	3068	rundll32.exe	rundll32.exe
PID 3068 wrote to memory of 3840	3068	rundll32.exe	rundll32.exe
PID 3840 wrote to memory of 3032	3840	rundll32.exe	rundll32.exe
PID 3840 wrote to memory of 3032	3840	rundll32.exe	rundll32.exe
PID 3840 wrote to memory of 3032	3840	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\8bec2125ada9f365ce9979eb8334ab12136f40458a47969f00c5d852f48c03a6.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2504

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:3228

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:3068

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Hpmtamtmtpnbto\icbi.yic",dMTFpMBSikIF
4⤵
- Suspicious use of WriteProcessMemory
PID:3840

C:\Windows\SysWOW64\rundll32.exe
C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Hpmtamtmtpnbto\icbi.yic",DllRegisterServer
5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
PID:3032

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
d34ddf0b4ed069a23d4b84d193ed3b9e

SHA1
042311b13dbd0bc1d2bb4ab321ad0859926cc9fc

SHA256
5dfb4e2f8083fed688f3bdb6a47148a23a5432ff656ca9bddfe7efedca85fa98

SHA512
9a03a7647f90979638a747d32482df707e02a5601bdf4650ae3e3a3cbd4329eda5a21ceee5fbc2f09f7a3d83c0b165ad56e8dccd4cd65c2986a07e79ff7f4853

Download Submit
\Users\Admin\erum.ocx
MD5
d34ddf0b4ed069a23d4b84d193ed3b9e

SHA1
042311b13dbd0bc1d2bb4ab321ad0859926cc9fc

SHA256
5dfb4e2f8083fed688f3bdb6a47148a23a5432ff656ca9bddfe7efedca85fa98

SHA512
9a03a7647f90979638a747d32482df707e02a5601bdf4650ae3e3a3cbd4329eda5a21ceee5fbc2f09f7a3d83c0b165ad56e8dccd4cd65c2986a07e79ff7f4853

Download Submit
\Users\Admin\erum.ocx
MD5
d34ddf0b4ed069a23d4b84d193ed3b9e

SHA1
042311b13dbd0bc1d2bb4ab321ad0859926cc9fc

SHA256
5dfb4e2f8083fed688f3bdb6a47148a23a5432ff656ca9bddfe7efedca85fa98

SHA512
9a03a7647f90979638a747d32482df707e02a5601bdf4650ae3e3a3cbd4329eda5a21ceee5fbc2f09f7a3d83c0b165ad56e8dccd4cd65c2986a07e79ff7f4853

Download Submit
memory/2504-121-0x000001B02BFF0000-0x000001B02BFF2000-memory.dmp

Filesize
8KB

Download
memory/2504-118-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

Filesize
64KB

Download
memory/2504-122-0x000001B02BFF0000-0x000001B02BFF2000-memory.dmp

Filesize
8KB

Download
memory/2504-123-0x000001B02BFF0000-0x000001B02BFF2000-memory.dmp

Filesize
8KB

Download
memory/2504-129-0x00007FFE3ADD0000-0x00007FFE3ADE0000-memory.dmp

Filesize
64KB

Download
memory/2504-130-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

Filesize
64KB

Download
memory/2504-131-0x00007FFE3ADD0000-0x00007FFE3ADE0000-memory.dmp

Filesize
64KB

Download
memory/2504-120-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

Filesize
64KB

Download
memory/2504-119-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

Filesize
64KB

Download
memory/2504-117-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

Filesize
64KB

Download
memory/3032-290-0x0000000000000000-mapping.dmp

Download
memory/3068-272-0x0000000000000000-mapping.dmp

Download
memory/3228-267-0x0000000000000000-mapping.dmp

Download
memory/3840-285-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads