emotet | 43bb42df26a3464677c81dcac31f942f58915831318c7425304c56243c3555b6

General

Target

Invoice n 0121 14 Mar 23.doc
Size

516.3MB
MD5

df1f5214a1183145cea5e869ac2d0b33
SHA1

006f600a1c3e3dba34e4e8d7f404375a63e7815a
SHA256

bbf8ae7c9146dec0eeafd8792d70d1bcec0f0156ae415db0e00508089f2e9d36
SHA512

b53f31f70901871469d2d5689f8de130ad7eb8fd78f8a7bd7f04354d3b0997716e337903fbe14dffd6de6f23152ddc607127016019613dc01c30e4a2c2240177
SSDEEP

6144:1620tqUx3Xu+7ZkRIDNGi9a0Va5UAClo:1620tqm3+I2ezcz5U3lo

Score

10^/10

emotet epoch4 banker persistence trojan

Malware Config

Extracted

Family

emotet

Botnet

Epoch4

C2

164.68.99.3:8080

164.90.222.65:443

186.194.240.217:443

1.234.2.232:8080

103.75.201.2:443

187.63.160.88:80

147.139.166.154:8080

91.207.28.33:8080

5.135.159.50:443

153.92.5.27:8080

213.239.212.5:443

103.43.75.120:443

159.65.88.10:8080

167.172.253.162:8080

153.126.146.25:7080

119.59.103.152:8080

107.170.39.149:8080

183.111.227.137:8080

159.89.202.34:443

110.232.117.186:8080

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	1448	1028	regsvr32.exe	WINWORD.EXE

Loads dropped DLL 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1448 regsvr32.exe
5000 regsvr32.exe

pid	process
1448	regsvr32.exe
5000	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biILczJoPWOgFaoo.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\PNtWwgeaJgQSS\\biILczJoPWOgFaoo.dll\""	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 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	27	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	26	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

1028 WINWORD.EXE
1028 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

1448 regsvr32.exe
1448 regsvr32.exe
5000 regsvr32.exe
5000 regsvr32.exe
5000 regsvr32.exe
5000 regsvr32.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

WINWORD.EXE

pid process

1028 WINWORD.EXE
1028 WINWORD.EXE
1028 WINWORD.EXE
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

WINWORD.EXE

pid process

1028 WINWORD.EXE
1028 WINWORD.EXE
1028 WINWORD.EXE
1028 WINWORD.EXE
1028 WINWORD.EXE
1028 WINWORD.EXE
1028 WINWORD.EXE
1028 WINWORD.EXE

pid	process
1028	WINWORD.EXE
1028	WINWORD.EXE

pid	process
1448	regsvr32.exe
1448	regsvr32.exe
5000	regsvr32.exe
5000	regsvr32.exe
5000	regsvr32.exe
5000	regsvr32.exe

pid	process
1028	WINWORD.EXE
1028	WINWORD.EXE
1028	WINWORD.EXE

pid	process
1028	WINWORD.EXE
1028	WINWORD.EXE
1028	WINWORD.EXE
1028	WINWORD.EXE
1028	WINWORD.EXE
1028	WINWORD.EXE
1028	WINWORD.EXE
1028	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXEregsvr32.exe

description	pid	process	target process
PID 1028 wrote to memory of 1448	1028	WINWORD.EXE	regsvr32.exe
PID 1028 wrote to memory of 1448	1028	WINWORD.EXE	regsvr32.exe
PID 1448 wrote to memory of 5000	1448	regsvr32.exe	regsvr32.exe
PID 1448 wrote to memory of 5000	1448	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\Invoice n 0121 14 Mar 23.doc" /o ""
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:1028

C:\Windows\System32\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\124447.tmp"
2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1448

C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\PNtWwgeaJgQSS\biILczJoPWOgFaoo.dll"
3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:5000

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\124447.tmp
Filesize
530.5MB

MD5
7caa4b3c4e90e40702cac9170232e5e7

SHA1
31ff941788ff6003953a970fa0ee77a85e60392e

SHA256
dcf2a27ccf1e93ca3ff750c773179ba5558fa303bbd11a68af330a9b2f268157

SHA512
646e20465991f1a080591ff4d14d7855401410c56bfd88c1fe5d6ff580f83b5815d30ff13453301c335afea9a69755445f694df8d2769e2a178385413ff93d7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\124447.tmp
Filesize
530.5MB

MD5
7caa4b3c4e90e40702cac9170232e5e7

SHA1
31ff941788ff6003953a970fa0ee77a85e60392e

SHA256
dcf2a27ccf1e93ca3ff750c773179ba5558fa303bbd11a68af330a9b2f268157

SHA512
646e20465991f1a080591ff4d14d7855401410c56bfd88c1fe5d6ff580f83b5815d30ff13453301c335afea9a69755445f694df8d2769e2a178385413ff93d7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\124502.zip
Filesize
836KB

MD5
af7fcc7c59c94402ea5a0212a9afdc60

SHA1
1f732ca2337d61e7bd7d6a50c5ef9e51695c9ed6

SHA256
458f8f0107984a508d1ad2288b5056efd7506ca61c4d34e6b5812cd4deba64e3

SHA512
72d5f1b792859fe0d50aa4ca874e08d837bec4505f92452fe87ab49ef356be63beccc9d775bfb18406cbce49ca22337352320d8cbc367bf048739e9f6c3c672f

Download Submit
C:\Windows\System32\PNtWwgeaJgQSS\biILczJoPWOgFaoo.dll
Filesize
530.5MB

MD5
7caa4b3c4e90e40702cac9170232e5e7

SHA1
31ff941788ff6003953a970fa0ee77a85e60392e

SHA256
dcf2a27ccf1e93ca3ff750c773179ba5558fa303bbd11a68af330a9b2f268157

SHA512
646e20465991f1a080591ff4d14d7855401410c56bfd88c1fe5d6ff580f83b5815d30ff13453301c335afea9a69755445f694df8d2769e2a178385413ff93d7a

Download Submit
memory/1028-134-0x00007FFCF5750000-0x00007FFCF5760000-memory.dmp

Filesize
64KB

Download
memory/1028-138-0x00007FFCF33F0000-0x00007FFCF3400000-memory.dmp

Filesize
64KB

Download
memory/1028-139-0x00007FFCF33F0000-0x00007FFCF3400000-memory.dmp

Filesize
64KB

Download
memory/1028-136-0x00007FFCF5750000-0x00007FFCF5760000-memory.dmp

Filesize
64KB

Download
memory/1028-135-0x00007FFCF5750000-0x00007FFCF5760000-memory.dmp

Filesize
64KB

Download
memory/1028-137-0x00007FFCF5750000-0x00007FFCF5760000-memory.dmp

Filesize
64KB

Download
memory/1028-133-0x00007FFCF5750000-0x00007FFCF5760000-memory.dmp

Filesize
64KB

Download
memory/1028-206-0x00007FFCF5750000-0x00007FFCF5760000-memory.dmp

Filesize
64KB

Download
memory/1028-208-0x00007FFCF5750000-0x00007FFCF5760000-memory.dmp

Filesize
64KB

Download
memory/1028-207-0x00007FFCF5750000-0x00007FFCF5760000-memory.dmp

Filesize
64KB

Download
memory/1028-209-0x00007FFCF5750000-0x00007FFCF5760000-memory.dmp

Filesize
64KB

Download
memory/1448-179-0x0000000002D30000-0x0000000002D5D000-memory.dmp

Filesize
180KB

Download
memory/1448-182-0x00000000014A0000-0x00000000014A1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads