emotet | 23f794cc8a7022ea9c31ea6dbb8a6235d805b60b52a837d538dc1be46c1ce468

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
12/05/2022, 12:12

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General

Target
SCAN9265_0005.xls
Size 40KB
Sample220512-pc6htsdhe2
SHA256 23f794cc8a7022ea9c31ea6dbb8a6235d805b60b52a837d538dc1be46c1ce468
MD5 679d7aa7b8373f42e380e08581092f32
SHA1 620027ac4f1ab77136a598a66e5de6504e873215
SHA512 c430d03ad733110b133725ae397d8f75725d4a7ed3a88f1a3824a7b150b1b0572cf29c418ebd3011fe4845bc4af2cb33ea57ea0c0102c1d35cce98697a877e59
MD5 SHA1 SHA512

Score

10^/10

emotet banker suricata trojan

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
https://www.itesmeitic.com/term/IFjx5ElE0ldr8wDDHjub/

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	1796	2112	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
1796	regsvr32.exe
3356	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 opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
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

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
2112	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3356	regsvr32.exe
3356	regsvr32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2112	EXCEL.EXE
2112	EXCEL.EXE
2112	EXCEL.EXE
2112	EXCEL.EXE
2112	EXCEL.EXE
2112	EXCEL.EXE
2112	EXCEL.EXE
2112	EXCEL.EXE
2112	EXCEL.EXE
2112	EXCEL.EXE
2112	EXCEL.EXE
2112	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 1796	2112	EXCEL.EXE	100
PID 2112 wrote to memory of 1796	2112	EXCEL.EXE	100
PID 1796 wrote to memory of 3356	1796	regsvr32.exe	101
PID 1796 wrote to memory of 3356	1796	regsvr32.exe	101

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\SCAN9265_0005.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe ..\wurod.ocx
  2⤵
  - Process spawned unexpected child process
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1796
- - C:\Windows\system32\regsvr32.exe
    C:\Windows\system32\regsvr32.exe "C:\Windows\system32\SjjhQ\USFxIZq.dll"
    3⤵
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:3356

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

Replay Monitor

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Downloads

wurod.ocx

Path C:\Users\Admin\wurod.ocx
Size 764KB
SHA256 d308e10c170d128b7ad92bd6abdb3d9696b7dfb997a2911f6a1ddc3d3bafe5cc
MD5 6c0a8cd26761b7fd12dbe90af13faf54
SHA1 d98b589c6a97da52bb30ce161b17652cc0e787b8
SHA512 de097fe2d435ce4cabe54e597f91f811853cb64413cb6622b80794a342119bc765b2d1157ff4c237a122562fa8b8eb19fea1fde1ccade5271ff3e0bb25f7f8b3
SSDEEP 12288:e1NKDzZKRpnBlD7MGVrdjF3hRcTsApSvHQdOzyK7zjwOjmS6jNwgraKRT61cKGNx:S4DzZKnH4bRGY61WN+
MD5 SHA1 SHA512 SSDEEP

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wurod.ocx

Path C:\Users\Admin\wurod.ocx
Size 764KB
SHA256 d308e10c170d128b7ad92bd6abdb3d9696b7dfb997a2911f6a1ddc3d3bafe5cc
MD5 6c0a8cd26761b7fd12dbe90af13faf54
SHA1 d98b589c6a97da52bb30ce161b17652cc0e787b8
SHA512 de097fe2d435ce4cabe54e597f91f811853cb64413cb6622b80794a342119bc765b2d1157ff4c237a122562fa8b8eb19fea1fde1ccade5271ff3e0bb25f7f8b3
SSDEEP 12288:e1NKDzZKRpnBlD7MGVrdjF3hRcTsApSvHQdOzyK7zjwOjmS6jNwgraKRT61cKGNx:S4DzZKnH4bRGY61WN+
MD5 SHA1 SHA512 SSDEEP

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USFxIZq.dll

Path C:\Windows\System32\SjjhQ\USFxIZq.dll
Size 764KB
SHA256 d308e10c170d128b7ad92bd6abdb3d9696b7dfb997a2911f6a1ddc3d3bafe5cc
MD5 6c0a8cd26761b7fd12dbe90af13faf54
SHA1 d98b589c6a97da52bb30ce161b17652cc0e787b8
SHA512 de097fe2d435ce4cabe54e597f91f811853cb64413cb6622b80794a342119bc765b2d1157ff4c237a122562fa8b8eb19fea1fde1ccade5271ff3e0bb25f7f8b3
SSDEEP 12288:e1NKDzZKRpnBlD7MGVrdjF3hRcTsApSvHQdOzyK7zjwOjmS6jNwgraKRT61cKGNx:S4DzZKnH4bRGY61WN+
MD5 SHA1 SHA512 SSDEEP

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memory/1796-140-0x0000000000B00000-0x0000000000B30000-memory.dmp

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memory/2112-133-0x00007FFC95270000-0x00007FFC95280000-memory.dmp

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memory/2112-136-0x00007FFC93100000-0x00007FFC93110000-memory.dmp

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memory/2112-135-0x00007FFC93100000-0x00007FFC93110000-memory.dmp

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memory/2112-134-0x00007FFC95270000-0x00007FFC95280000-memory.dmp

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memory/2112-130-0x00007FFC95270000-0x00007FFC95280000-memory.dmp

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memory/2112-132-0x00007FFC95270000-0x00007FFC95280000-memory.dmp

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memory/2112-131-0x00007FFC95270000-0x00007FFC95280000-memory.dmp

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