emotet | b6c8bc00e90ec6914272a9c099be7e8f249ccbaad0a0736133209fc9d47678c5

General

Target

USV46385358197969_202303220740.doc
Size

231KB
MD5

c53dd8ae3727ecb19a8a009476863f14
SHA1

f314783d12a8bd97333b0e524897811b155dcfcb
SHA256

b6c8bc00e90ec6914272a9c099be7e8f249ccbaad0a0736133209fc9d47678c5
SHA512

fa4d072f4f6329eab723931a8e4b8ec4d0bc23e84700999b78b552afe7ab64d1e0e2aebb51b55cedd7619033024e377ee42b33ba6daa86c1140174ad05faff63
SSDEEP

6144:NoK2NIve7Crm2S+sgD22TMp7Gw8WL2/URpM:Kgm7CC2rD2J74ApM

Score

10^/10

emotet epoch4 banker persistence 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	1412	2836	regsvr32.exe	WINWORD.EXE

Loads dropped DLL 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1412 regsvr32.exe
3264 regsvr32.exe

pid	process
1412	regsvr32.exe
3264	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\iSfRLaZMxAO.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\HSUYOitmrV\\iSfRLaZMxAO.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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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 46 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

2836 WINWORD.EXE
2836 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1412 regsvr32.exe
1412 regsvr32.exe
3264 regsvr32.exe
3264 regsvr32.exe
3264 regsvr32.exe
3264 regsvr32.exe
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

2836 WINWORD.EXE
2836 WINWORD.EXE
2836 WINWORD.EXE
2836 WINWORD.EXE
2836 WINWORD.EXE
2836 WINWORD.EXE
2836 WINWORD.EXE
2836 WINWORD.EXE

description	flow	ioc
HTTP User-Agent header	46	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
2836	WINWORD.EXE
2836	WINWORD.EXE

pid	process
1412	regsvr32.exe
1412	regsvr32.exe
3264	regsvr32.exe
3264	regsvr32.exe
3264	regsvr32.exe
3264	regsvr32.exe

pid	process
2836	WINWORD.EXE
2836	WINWORD.EXE
2836	WINWORD.EXE
2836	WINWORD.EXE
2836	WINWORD.EXE
2836	WINWORD.EXE
2836	WINWORD.EXE
2836	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXEregsvr32.exe

description	pid	process	target process
PID 2836 wrote to memory of 1412	2836	WINWORD.EXE	regsvr32.exe
PID 2836 wrote to memory of 1412	2836	WINWORD.EXE	regsvr32.exe
PID 1412 wrote to memory of 3264	1412	regsvr32.exe	regsvr32.exe
PID 1412 wrote to memory of 3264	1412	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\USV46385358197969_202303220740.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:2836

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\234109.tmp"
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1412

C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\HSUYOitmrV\iSfRLaZMxAO.dll"
3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:3264

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\234109.tmp
Filesize
513.9MB

MD5
e9f7a3236613a43cb55ff0de34717aa1

SHA1
35733e63fdb1a122a79af9ba82ebb043d1a0804e

SHA256
fbd8b34e1c6f5fec3dceec4c857b260cacf82166d1e7062594cbe30392b632db

SHA512
60b2f0d81a68b37590a293fa47472ff8f45862faffddc3772bcf2862f40b759903c50cc9300a1aa15a41ad26e918629dad2c207b149f5215d66f5a4954fd2e1b

Download Submit
C:\Users\Admin\AppData\Local\Temp\234109.tmp
Filesize
513.9MB

MD5
e9f7a3236613a43cb55ff0de34717aa1

SHA1
35733e63fdb1a122a79af9ba82ebb043d1a0804e

SHA256
fbd8b34e1c6f5fec3dceec4c857b260cacf82166d1e7062594cbe30392b632db

SHA512
60b2f0d81a68b37590a293fa47472ff8f45862faffddc3772bcf2862f40b759903c50cc9300a1aa15a41ad26e918629dad2c207b149f5215d66f5a4954fd2e1b

Download Submit
C:\Users\Admin\AppData\Local\Temp\234111.zip
Filesize
953KB

MD5
a0be50214dfd69fb2102fa6d33d0b308

SHA1
311ef8772a19322e41ccbb380ba79ff2bc779de6

SHA256
13cbf971d2c9e4cd0326a1164c4be0349b050a60fd067a4c162b7b7dead1d345

SHA512
6a8098b558681b7a531b8024e78a657241bd1ada1a4a67809ec6cae2532af204ac8b82f11a050f03a2dcd6e75076d2f1b7a69e1b839355bcacbfaaa979836350

Download Submit
C:\Windows\System32\HSUYOitmrV\iSfRLaZMxAO.dll
Filesize
513.9MB

MD5
e9f7a3236613a43cb55ff0de34717aa1

SHA1
35733e63fdb1a122a79af9ba82ebb043d1a0804e

SHA256
fbd8b34e1c6f5fec3dceec4c857b260cacf82166d1e7062594cbe30392b632db

SHA512
60b2f0d81a68b37590a293fa47472ff8f45862faffddc3772bcf2862f40b759903c50cc9300a1aa15a41ad26e918629dad2c207b149f5215d66f5a4954fd2e1b

Download Submit
memory/1412-179-0x0000000002650000-0x00000000026AA000-memory.dmp

Filesize
360KB

Download
memory/1412-183-0x0000000000D10000-0x0000000000D11000-memory.dmp

Filesize
4KB

Download
memory/2836-136-0x00007FFA94230000-0x00007FFA94240000-memory.dmp

Filesize
64KB

Download
memory/2836-137-0x00007FFA94230000-0x00007FFA94240000-memory.dmp

Filesize
64KB

Download
memory/2836-135-0x00007FFA94230000-0x00007FFA94240000-memory.dmp

Filesize
64KB

Download
memory/2836-134-0x00007FFA94230000-0x00007FFA94240000-memory.dmp

Filesize
64KB

Download
memory/2836-139-0x00007FFA92070000-0x00007FFA92080000-memory.dmp

Filesize
64KB

Download
memory/2836-138-0x00007FFA92070000-0x00007FFA92080000-memory.dmp

Filesize
64KB

Download
memory/2836-133-0x00007FFA94230000-0x00007FFA94240000-memory.dmp

Filesize
64KB

Download
memory/2836-208-0x00007FFA94230000-0x00007FFA94240000-memory.dmp

Filesize
64KB

Download
memory/2836-210-0x00007FFA94230000-0x00007FFA94240000-memory.dmp

Filesize
64KB

Download
memory/2836-209-0x00007FFA94230000-0x00007FFA94240000-memory.dmp

Filesize
64KB

Download
memory/2836-211-0x00007FFA94230000-0x00007FFA94240000-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