emotet | 406ffd16cec91bb6f53e27623c096a4a6bb060ff5ab52d45e6e6ae864dbcc8a3

General

Target

Mail_17032023.doc
Size

545.3MB
MD5

c81c9c01882f96abdcfa92ee9f31a3b1
SHA1

682ec88a99317a68027b9d6a68cfbf84a17606af
SHA256

406ffd16cec91bb6f53e27623c096a4a6bb060ff5ab52d45e6e6ae864dbcc8a3
SHA512

d3b4e663f8e7134825e6b9d27fc8dada8e470cb82e27cc04d4248c5d279261036c42281773814581671f33558833e1ecb2932d14dff5ba811e6111eb08d6b520
SSDEEP

6144:ip32/gDd0Nmt71wFmSWjfDrV8YQnZocbyrX4NqclWL9:ip32SEmtJwFmhjfPtrXqqyW

Score

10^/10

emotet epoch5 banker persistence trojan

Malware Config

Extracted

Family

emotet

Botnet

Epoch5

C2

103.85.95.4:8080

103.224.241.74:8080

178.238.225.252:8080

37.59.103.148:8080

78.47.204.80:443

138.197.14.67:8080

128.199.242.164:8080

54.37.228.122:443

37.44.244.177:8080

139.59.80.108:8080

218.38.121.17:443

82.98.180.154:7080

114.79.130.68:443

159.65.135.222:7080

174.138.33.49:7080

195.77.239.39:8080

193.194.92.175:443

198.199.70.22:8080

85.214.67.203:8080

93.84.115.205:7080

ecs1.plain

eck1.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	1552	4392	regsvr32.exe	WINWORD.EXE

Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1552 regsvr32.exe
4308 regsvr32.exe

pid	process
1552	regsvr32.exe
4308	regsvr32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

regsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CNxChAfgjwU.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\XtjxLZK\\CNxChAfgjwU.dll\""	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	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 opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.

Processes:

description flow ioc

HTTP User-Agent header 18 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4392 WINWORD.EXE
4392 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1552 regsvr32.exe
1552 regsvr32.exe
4308 regsvr32.exe
4308 regsvr32.exe
4308 regsvr32.exe
4308 regsvr32.exe
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

4392 WINWORD.EXE
4392 WINWORD.EXE
4392 WINWORD.EXE
4392 WINWORD.EXE
4392 WINWORD.EXE
4392 WINWORD.EXE
4392 WINWORD.EXE
4392 WINWORD.EXE

description	flow	ioc
HTTP User-Agent header	18	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
4392	WINWORD.EXE
4392	WINWORD.EXE

pid	process
1552	regsvr32.exe
1552	regsvr32.exe
4308	regsvr32.exe
4308	regsvr32.exe
4308	regsvr32.exe
4308	regsvr32.exe

pid	process
4392	WINWORD.EXE
4392	WINWORD.EXE
4392	WINWORD.EXE
4392	WINWORD.EXE
4392	WINWORD.EXE
4392	WINWORD.EXE
4392	WINWORD.EXE
4392	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXEregsvr32.exe

description	pid	process	target process
PID 4392 wrote to memory of 1552	4392	WINWORD.EXE	regsvr32.exe
PID 4392 wrote to memory of 1552	4392	WINWORD.EXE	regsvr32.exe
PID 1552 wrote to memory of 4308	1552	regsvr32.exe	regsvr32.exe
PID 1552 wrote to memory of 4308	1552	regsvr32.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\Mail_17032023.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:4392

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\115921.tmp"
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1552

C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\XtjxLZK\CNxChAfgjwU.dll"
3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:4308

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\115921.tmp
Filesize
561KB

MD5
c901c8089c5e017f8e9b4b15c8ef154f

SHA1
336c2bea43bfa2e8afd27a164dba640f36c0013c

SHA256
fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

SHA512
9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

Download Submit
C:\Users\Admin\AppData\Local\Temp\115921.tmp
Filesize
561KB

MD5
c901c8089c5e017f8e9b4b15c8ef154f

SHA1
336c2bea43bfa2e8afd27a164dba640f36c0013c

SHA256
fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

SHA512
9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

Download Submit
C:\Windows\System32\XtjxLZK\CNxChAfgjwU.dll
Filesize
561KB

MD5
c901c8089c5e017f8e9b4b15c8ef154f

SHA1
336c2bea43bfa2e8afd27a164dba640f36c0013c

SHA256
fd79e8fa5e3801101a1305b6aba7a5e7fdc852ed9036d6d9a5210be414a5cc5a

SHA512
9ff052f9fc9cc3cf74b170f76d6a20a01c5dbb74b2d97edc9e55b75f52b408f3104e49bf290773bd63d216f2787d945aa7d954b58e927c99e1db18c6a7d74ade

Download Submit
memory/1552-157-0x0000000002410000-0x0000000002411000-memory.dmp

Filesize
4KB

Download
memory/1552-154-0x0000000002450000-0x000000000247C000-memory.dmp

Filesize
176KB

Download
memory/4392-137-0x00007FFFB8410000-0x00007FFFB8420000-memory.dmp

Filesize
64KB

Download
memory/4392-139-0x00007FFFB6230000-0x00007FFFB6240000-memory.dmp

Filesize
64KB

Download
memory/4392-138-0x00007FFFB6230000-0x00007FFFB6240000-memory.dmp

Filesize
64KB

Download
memory/4392-133-0x00007FFFB8410000-0x00007FFFB8420000-memory.dmp

Filesize
64KB

Download
memory/4392-136-0x00007FFFB8410000-0x00007FFFB8420000-memory.dmp

Filesize
64KB

Download
memory/4392-135-0x00007FFFB8410000-0x00007FFFB8420000-memory.dmp

Filesize
64KB

Download
memory/4392-134-0x00007FFFB8410000-0x00007FFFB8420000-memory.dmp

Filesize
64KB

Download
memory/4392-188-0x00007FFFB8410000-0x00007FFFB8420000-memory.dmp

Filesize
64KB

Download
memory/4392-189-0x00007FFFB8410000-0x00007FFFB8420000-memory.dmp

Filesize
64KB

Download
memory/4392-190-0x00007FFFB8410000-0x00007FFFB8420000-memory.dmp

Filesize
64KB

Download
memory/4392-191-0x00007FFFB8410000-0x00007FFFB8420000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads