emotet | dca8eaa3af3959b306af25eed2fa0edff0e0afc2eff8303e02086f3c9e2d24aa

Analysis

max time kernel
148s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20220310-en
submitted
30/03/2022, 19:24

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General

Target
03cdad5c929d9df8a2da58fafbd0978e.xls
Size 106KB
Sample220330-x4cc3acecl
SHA256 dca8eaa3af3959b306af25eed2fa0edff0e0afc2eff8303e02086f3c9e2d24aa
MD5 03cdad5c929d9df8a2da58fafbd0978e
SHA1 255f18efe0cf20b880ff1063e254c95f4a5ddd55
SHA512 a7ca8db38e41b1a586fa68c74337194aa05ea4d71a6f3ce7fb5290411c644c4800cb2b8cd044b77f528702a8f62ec3ed5690a0839d3bc41a4217edaa2522b4e1
MD5 SHA1 SHA512

Score

10^/10

emotet epoch4 banker suricata trojan

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
https://www.gessersh.com/wp-includes/ZwQLepW/

Extracted

Family

emotet

Botnet

Epoch4

45.176.232.125:443
138.197.109.175:8080
187.84.80.182:443
79.143.187.147:443
189.232.46.161:443
103.70.28.102:8080
134.122.66.193:8080
151.106.112.196:8080
160.16.142.56:8080
212.24.98.99:8080
188.44.20.25:443
197.242.150.244:8080
206.189.28.199:8080
172.104.251.154:8080
103.43.46.182:443
203.114.109.124:443
103.75.201.2:443
58.227.42.236:80
201.94.166.162:443
189.126.111.200:7080
185.8.212.130:7080
167.99.115.35:8080
129.232.188.93:443
1.234.2.232:8080
153.126.146.25:7080
185.157.82.211:8080
131.100.24.231:80
1.234.21.73:7080
192.99.251.50:443
119.193.124.41:7080
159.8.59.82:8080
158.69.222.101:443
51.254.140.238:7080
5.9.116.246:8080
45.176.232.124:443
159.65.88.10:8080
101.50.0.91:8080
107.182.225.142:8080
167.172.253.162:8080
79.172.212.216:8080
50.30.40.196:8080
196.218.30.83:443
51.91.7.5:8080
212.237.17.99:8080
72.15.201.15:8080
183.111.227.137:8080
51.91.76.89:8080
209.250.246.206:443
176.104.106.96:8080
46.55.222.11:443
209.126.98.206:8080
164.68.99.3:8080
176.56.128.118:443
103.132.242.26:8080
110.232.117.186:8080
146.59.226.45:443
173.212.193.249:8080
82.165.152.127:8080
45.118.115.99:8080
216.158.226.206:443

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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4040	4996	regsvr32.exe	81

suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata

Loads dropped DLL 2 IoCs

pid	Process
4040	regsvr32.exe
1332	regsvr32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Mtdrsqb\rwnnp.bcz	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

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4996	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1332	regsvr32.exe
1332	regsvr32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4996	EXCEL.EXE
4996	EXCEL.EXE
4996	EXCEL.EXE
4996	EXCEL.EXE
4996	EXCEL.EXE
4996	EXCEL.EXE
4996	EXCEL.EXE
4996	EXCEL.EXE
4996	EXCEL.EXE
4996	EXCEL.EXE
4996	EXCEL.EXE
4996	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 4040	4996	EXCEL.EXE	88
PID 4996 wrote to memory of 4040	4996	EXCEL.EXE	88
PID 4996 wrote to memory of 4040	4996	EXCEL.EXE	88
PID 4040 wrote to memory of 1332	4040	regsvr32.exe	92
PID 4040 wrote to memory of 1332	4040	regsvr32.exe	92
PID 4040 wrote to memory of 1332	4040	regsvr32.exe	92

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\03cdad5c929d9df8a2da58fafbd0978e.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Windows\SysWow64\regsvr32.exe
  C:\Windows\SysWow64\regsvr32.exe -s ..\urtj.dll
  2⤵
  - Process spawned unexpected child process
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4040
- - C:\Windows\SysWOW64\regsvr32.exe
    C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Mtdrsqb\rwnnp.bcz"
    3⤵
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:1332

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

urtj.dll

Path C:\Users\Admin\urtj.dll
Size 431KB
SHA256 033e7a301238c2fa912d70f21305494ad3a53e8ab518482d93d8ebf5ddee58e1
MD5 155e5a10b9cbfd9e7ed0a56244659d6f
SHA1 69f54f8b0f414c24f59aa635993693ff76c25ec0
SHA512 d9502a883515a3e318d42c82880995bd374363512062677aa24ceb49edd017344a2380d66ef2b5ef4fd50e0042557d3d84a08aaf5084aa9729457cccd69d80b8
MD5 SHA1 SHA512

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urtj.dll

Path C:\Users\Admin\urtj.dll
Size 431KB
SHA256 033e7a301238c2fa912d70f21305494ad3a53e8ab518482d93d8ebf5ddee58e1
MD5 155e5a10b9cbfd9e7ed0a56244659d6f
SHA1 69f54f8b0f414c24f59aa635993693ff76c25ec0
SHA512 d9502a883515a3e318d42c82880995bd374363512062677aa24ceb49edd017344a2380d66ef2b5ef4fd50e0042557d3d84a08aaf5084aa9729457cccd69d80b8
MD5 SHA1 SHA512

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rwnnp.bcz

Path C:\Windows\SysWOW64\Mtdrsqb\rwnnp.bcz
Size 431KB
SHA256 033e7a301238c2fa912d70f21305494ad3a53e8ab518482d93d8ebf5ddee58e1
MD5 155e5a10b9cbfd9e7ed0a56244659d6f
SHA1 69f54f8b0f414c24f59aa635993693ff76c25ec0
SHA512 d9502a883515a3e318d42c82880995bd374363512062677aa24ceb49edd017344a2380d66ef2b5ef4fd50e0042557d3d84a08aaf5084aa9729457cccd69d80b8
MD5 SHA1 SHA512

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memory/1332-147-0x0000000002860000-0x0000000002884000-memory.dmp

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memory/4040-142-0x0000000002300000-0x0000000002324000-memory.dmp

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memory/4996-134-0x00007FF7CC530000-0x00007FF7CC540000-memory.dmp

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memory/4996-135-0x00007FF7CC530000-0x00007FF7CC540000-memory.dmp

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memory/4996-136-0x00007FF7CC530000-0x00007FF7CC540000-memory.dmp

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memory/4996-137-0x00007FF7CC530000-0x00007FF7CC540000-memory.dmp

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memory/4996-138-0x00007FF7CC530000-0x00007FF7CC540000-memory.dmp

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