emotet | 6033fd96dd00c243803b6014abab64dce11089300a5ae85cb0a7535f5edad82b

Analysis

max time kernel
135s
max time network
153s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
10/11/2022, 21:27

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General

Target
6033fd96dd00c243803b6014abab64dce11089300a5ae85cb0a7535f5edad82b.xls
Size 91KB
Sample221110-1a82qaeca2
SHA256 6033fd96dd00c243803b6014abab64dce11089300a5ae85cb0a7535f5edad82b
MD5 41c5d7bb100e9a5c17a5a3289a80736c
SHA1 e712777365c3ffe198b0d61c60422d761444bd6b
SHA512 5e36c67b1f4474c06b21bc4b1010173ac1d89e34a3d96b618fdd1ded36335b97e148cb61fb65cafa0ac2d329226d07cce9e39d80cf1d39cb886ccf7b0dd3ec5a
SSDEEP 1536:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg4bCXuZH4gb4CEn9J4ZzrX:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgc
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

emotet epoch4 banker persistence trojan

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
http://www.vinyz.com/cache/rqWV/
xlm40.dropper
http://yuanliao.raluking.com/1eq5o7/gHrTM8YilZz0quKt/

Extracted

Family

emotet

Botnet

Epoch4

185.4.135.165:8080
159.89.202.34:443
82.223.21.224:8080
187.63.160.88:80
188.44.20.25:443
91.187.140.35:8080
110.232.117.186:8080
197.242.150.244:8080
119.59.103.152:8080
182.162.143.56:443
72.15.201.15:8080
173.255.211.88:443
206.189.28.199:8080
94.23.45.86:4143
45.63.99.23:7080
153.126.146.25:7080
45.118.115.99:8080
115.68.227.76:8080
163.44.196.120:8080
159.65.140.115:443
169.57.156.166:8080
139.59.56.73:8080
183.111.227.137:8080
202.129.205.3:8080
103.43.75.120:443
45.176.232.124:443
186.194.240.217:443
173.212.193.249:8080
139.59.126.41:443
149.56.131.28:8080
159.65.88.10:8080
201.94.166.162:443
107.170.39.149:8080
103.75.201.2:443
103.132.242.26:8080
209.97.163.214:443
129.232.188.93:443
79.137.35.198:8080
101.50.0.91:8080
147.139.166.154:8080
160.16.142.56:8080
153.92.5.27:8080
167.172.199.165:8080
95.217.221.146:8080
167.172.253.162:8080
164.90.222.65:443
172.105.226.75:8080
164.68.99.3:8080
213.239.212.5:443
91.207.28.33:8080
45.235.8.30:8080
172.104.251.154:8080
5.135.159.50:443
212.24.98.99:8080
104.168.155.143:8080
1.234.2.232:8080

ecs1.plain

eck1.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	3076	3520	regsvr32.exe	65

Downloads MZ/PE file

Loads dropped DLL 1 IoCs

pid	Process
3076	regsvr32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YhNN.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\RbMau\\YhNN.dll\""	regsvr32.exe

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
3520	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3076	regsvr32.exe
3076	regsvr32.exe
5052	regsvr32.exe
5052	regsvr32.exe
5052	regsvr32.exe
5052	regsvr32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3520	EXCEL.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3520	EXCEL.EXE
3520	EXCEL.EXE
3520	EXCEL.EXE
3520	EXCEL.EXE
3520	EXCEL.EXE
3520	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3520 wrote to memory of 3076	3520	EXCEL.EXE	68
PID 3520 wrote to memory of 3076	3520	EXCEL.EXE	68
PID 3076 wrote to memory of 5052	3076	regsvr32.exe	69
PID 3076 wrote to memory of 5052	3076	regsvr32.exe	69

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\6033fd96dd00c243803b6014abab64dce11089300a5ae85cb0a7535f5edad82b.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3076
- - C:\Windows\system32\regsvr32.exe
    C:\Windows\system32\regsvr32.exe "C:\Windows\system32\RbMau\YhNN.dll"
    3⤵
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    PID:5052

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

elv1.ooocccxxx

Path C:\Users\Admin\elv1.ooocccxxx
Size 595KB
SHA256 a1753a7bdc024ecaf17f1e7ac87e893e00c9eead27c155ae04d4c0b3ba159791
MD5 cdd05e9f4f8b26cb4f8ff6cb5228f169
SHA1 5b6671377b88ac04b5b3dcf01a9bd828f7e8877f
SHA512 311a95d3adebb98e7612fe8331abf6882f5f223f1b83108f5c6d9d402beae9161db8dafa62255965dede37145de1cc708bfafd8ccbda0d826216d6fbe4945f99
SSDEEP 12288:QST8ek3+6ZIvp0p0tPEgBthNeYU5elGYpED+Hl5:Qjee+6evbtPEihGFYt
MD5 SHA1 SHA512 SSDEEP

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elv1.ooocccxxx

Path \Users\Admin\elv1.ooocccxxx
Size 595KB
SHA256 a1753a7bdc024ecaf17f1e7ac87e893e00c9eead27c155ae04d4c0b3ba159791
MD5 cdd05e9f4f8b26cb4f8ff6cb5228f169
SHA1 5b6671377b88ac04b5b3dcf01a9bd828f7e8877f
SHA512 311a95d3adebb98e7612fe8331abf6882f5f223f1b83108f5c6d9d402beae9161db8dafa62255965dede37145de1cc708bfafd8ccbda0d826216d6fbe4945f99
SSDEEP 12288:QST8ek3+6ZIvp0p0tPEgBthNeYU5elGYpED+Hl5:Qjee+6evbtPEihGFYt
MD5 SHA1 SHA512 SSDEEP

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memory/3076-254-0x0000000000CF0000-0x0000000000D20000-memory.dmp

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memory/3520-117-0x00007FFF5CC70000-0x00007FFF5CC80000-memory.dmp

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memory/3520-118-0x00007FFF5CC70000-0x00007FFF5CC80000-memory.dmp

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memory/3520-119-0x00007FFF5CC70000-0x00007FFF5CC80000-memory.dmp

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memory/3520-120-0x00007FFF5CC70000-0x00007FFF5CC80000-memory.dmp

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memory/3520-129-0x00007FFF59340000-0x00007FFF59350000-memory.dmp

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memory/3520-130-0x00007FFF59340000-0x00007FFF59350000-memory.dmp

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