emotet | f4fa53f4e973fc4d098cc5cca5ab550661d0b4018aadf1119a476c8597e5370f

General

Target

Invoice# 5140312 23-03-2023_0714.doc
Size

522.2MB
MD5

9fa322450e0bcdc40fa080cf8b49afea
SHA1

9278643d2fce17e9fd8b3ea61ef4ec15830bf2f1
SHA256

a0318b404ba8ae1eacbf350dd72c7fc708c184c78170bd715deb1f95356a3c65
SHA512

fc56db89c8bbae9c754bf9f7b505dbca774edef95ead849ff5aed76a5f76c1dbc65fca3a6e1ce248b3ad5da78fc765abd7908e2d443f4bece4b53d03c6f82c5a
SSDEEP

3072:brrCtKZF4eqZ627NHRxMvOwvzpl+vk6jZc:5F4eqYwHMvfvzpKk6Nc

Score

10^/10

emotet epoch4 banker trojan

Malware Config

Extracted

Family

emotet

Botnet

Epoch4

C2

213.239.212.5:443

129.232.188.93:443

103.43.75.120:443

197.242.150.244:8080

1.234.2.232:8080

110.232.117.186:8080

95.217.221.146:8080

159.89.202.34:443

159.65.88.10:8080

82.223.21.224:8080

169.57.156.166:8080

45.176.232.124:443

45.235.8.30:8080

173.212.193.249:8080

107.170.39.149:8080

119.59.103.152:8080

167.172.199.165:8080

91.207.28.33:8080

185.4.135.165:8080

104.168.155.143:8080

eck1.plain

ecs1.plain

Signatures

Emotet
Emotet is a trojan that is primarily spread through spam emails.
trojan banker emotet

Process spawned unexpected child process 1 IoCs

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

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	4472	2344	regsvr32.exe	WINWORD.EXE

Loads dropped DLL 1 IoCs

Processes:

regsvr32.exe

pid process

4472 regsvr32.exe

pid	process
4472	regsvr32.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:

WINWORD.EXE

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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

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

Script User-Agent 4 IoCs

Uses user-agent string associated with script host/environment.

Processes:

description	flow	ioc
HTTP User-Agent header	37	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	45	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	34	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	36	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

2344 WINWORD.EXE
2344 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

regsvr32.exe

pid process

4472 regsvr32.exe
4472 regsvr32.exe
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

WINWORD.EXE

pid process

2344 WINWORD.EXE
2344 WINWORD.EXE
2344 WINWORD.EXE
2344 WINWORD.EXE
2344 WINWORD.EXE
2344 WINWORD.EXE
2344 WINWORD.EXE

pid	process
2344	WINWORD.EXE
2344	WINWORD.EXE

pid	process
4472	regsvr32.exe
4472	regsvr32.exe

pid	process
2344	WINWORD.EXE
2344	WINWORD.EXE
2344	WINWORD.EXE
2344	WINWORD.EXE
2344	WINWORD.EXE
2344	WINWORD.EXE
2344	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 2344 wrote to memory of 4472	2344	WINWORD.EXE	regsvr32.exe
PID 2344 wrote to memory of 4472	2344	WINWORD.EXE	regsvr32.exe

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Invoice# 5140312 23-03-2023_0714.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2344

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\071602.tmp"
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:4472

C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\Ymrkct\aRBzceYxk.dll"
3⤵
PID:1532

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\071602.tmp

Filesize
484.9MB

MD5
8beba1dc3a43d34db16ee2dbc659b3a3

SHA1
8f0dbc93c0afa1fdff5959642aee504117598167

SHA256
e550da19f95c7e7a36af8deafd58713b452196840f99fe1515e0ac66daa58d6d

SHA512
8ae6c03d40f83e93ea53c6361210b797f034345c5f9d257686c84b390004367c45d4e9ce2d0dd36cd02068abb18d2b798a6e2552498cfbd5860e165202293b78

Download Submit
C:\Users\Admin\AppData\Local\Temp\071602.tmp

Filesize
536.9MB

MD5
3734e7ac83e3013b2eedd095a38b2992

SHA1
a9fd2e6cb607e3c977f0fc7222e9b190bfc75327

SHA256
55a64669009e01b0b719a092a520b5973ce16bab7b1a02985e833d500bc9bfd7

SHA512
98d36cc466b4c6ae2dde69145a438bfc7a69379bfd1e76980f4c3bae822b3897de4a24180ef556f053471e815146c4dc29a8991be8bb6dbbbb45dc4e6a921ede

Download Submit
C:\Users\Admin\AppData\Local\Temp\071605.zip

Filesize
976KB

MD5
bc9e932d478972c90af6690741aae444

SHA1
9220821e851b9f5f1f42a031610d56629e91c4c9

SHA256
241d6a4757b73c2cc6c64646157b613fcf0eceb0a91b26d1c5e82f8d32588f0c

SHA512
3b300ba550b33a435e388e1857d70b6e7c2a938d6047e23b77763e72a51a286a612da7fae51dce3bd7db8b531e4d35e33f32887717ec94ef1ca2e9c5b528c6c2

Download Submit
C:\Windows\System32\Ymrkct\aRBzceYxk.dll

Filesize
529.3MB

MD5
eb25c3f15c5a1b7dae3f6cdcaf799a51

SHA1
68904bb5cd82bfb19a909e8b426f4e9800f00a27

SHA256
68f6e234e785bacc4dbc7ea948f60c86265941a4cc8e74d96cdd5e7df8882ce7

SHA512
fc232ee55ae7a31104662049e3b668ad2b0a43ebde08b06dfdb03106d4daa54f09b340c23fdc1f2f754466b19b3de132d0f02df3aecbc701954a83dc2f28c601

Download Submit
memory/2344-134-0x00007FFC26730000-0x00007FFC26740000-memory.dmp

Filesize
64KB

Download
memory/2344-138-0x00007FFC24320000-0x00007FFC24330000-memory.dmp

Filesize
64KB

Download
memory/2344-139-0x00007FFC24320000-0x00007FFC24330000-memory.dmp

Filesize
64KB

Download
memory/2344-136-0x00007FFC26730000-0x00007FFC26740000-memory.dmp

Filesize
64KB

Download
memory/2344-135-0x00007FFC26730000-0x00007FFC26740000-memory.dmp

Filesize
64KB

Download
memory/2344-137-0x00007FFC26730000-0x00007FFC26740000-memory.dmp

Filesize
64KB

Download
memory/2344-133-0x00007FFC26730000-0x00007FFC26740000-memory.dmp

Filesize
64KB

Download
memory/2344-208-0x00007FFC26730000-0x00007FFC26740000-memory.dmp

Filesize
64KB

Download
memory/2344-209-0x00007FFC26730000-0x00007FFC26740000-memory.dmp

Filesize
64KB

Download
memory/2344-210-0x00007FFC26730000-0x00007FFC26740000-memory.dmp

Filesize
64KB

Download
memory/2344-211-0x00007FFC26730000-0x00007FFC26740000-memory.dmp

Filesize
64KB

Download
memory/4472-177-0x0000000002250000-0x00000000022AA000-memory.dmp

Filesize
360KB

Download
memory/4472-181-0x0000000000890000-0x0000000000891000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads