webmonitor | 3a161baa6ade1fd9b3430a4a828956473e7c91f6d9e05a448452136d99095aac

General

Target

df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe
Size

694KB
MD5

df280dda64ba0e93d9e80779eb9b2491
SHA1

30cb99df159bb60b3a9356b0f626deb0c95d56e1
SHA256

3a161baa6ade1fd9b3430a4a828956473e7c91f6d9e05a448452136d99095aac
SHA512

c48c57d07025b2342dedc715d35b3b7e3ccf4e3f3abafc81469c0c217c0f7df1b1d3a940ab8a98a1152b6edd2dcd4ae94f83d118467d92a69d26e66cf6e063fa
SSDEEP

12288:3LCwk7wqtnzX57EMgGMr+k0di2qP2WeR3PYeXuQViooshf:3LCwk7wqxx7JUvPxuPxuwHLh

Score

10^/10

webmonitor backdoor discovery infostealer persistence rat upx

Malware Config

Extracted

Family

webmonitor

C2

vit0x.wm01.to:443

Attributes

config_key
sfh0MavnyDfXzTlYYGRziPhnyIYnjr6k
private_key
pjaH84P73
url_path
/recv5.php

Signatures

RevcodeRat, WebMonitorRat
WebMonitor is a remote access tool that you can use from any browser access to control, and monitor your phones, or PCs.
backdoor rat infostealer webmonitor

WebMonitor payload 5 IoCs

resource	yara_rule
behavioral1/memory/1280-15-0x0000000000400000-0x00000000004F6000-memory.dmp	family_webmonitor
behavioral1/memory/1280-16-0x0000000000400000-0x00000000004F6000-memory.dmp	family_webmonitor
behavioral1/memory/1280-14-0x0000000000400000-0x00000000004F6000-memory.dmp	family_webmonitor
behavioral1/memory/1280-20-0x0000000000400000-0x00000000004F6000-memory.dmp	family_webmonitor
behavioral1/memory/1280-19-0x0000000000400000-0x00000000004F6000-memory.dmp	family_webmonitor

UPX packed file 10 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1280-11-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/1280-10-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/1280-7-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/1280-6-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/1280-12-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/1280-15-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/1280-16-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/1280-14-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/1280-20-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/1280-19-0x0000000000400000-0x00000000004F6000-memory.dmp	upx

Unexpected DNS network traffic destination 10 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	114.114.114.114
Destination IP	1.2.4.8
Destination IP	1.2.4.8
Destination IP	114.114.114.114
Destination IP	185.141.152.26
Destination IP	185.141.152.26
Destination IP	185.141.152.26
Destination IP	1.2.4.8
Destination IP	185.141.152.26
Destination IP	185.141.152.26

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\WebMonitor-1837 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-1837.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2476 set thread context of 1280	2476	df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1280	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 1280	2476	df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe	30
PID 2476 wrote to memory of 1280	2476	df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe	30
PID 2476 wrote to memory of 1280	2476	df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe	30
PID 2476 wrote to memory of 1280	2476	df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe	30
PID 2476 wrote to memory of 1280	2476	df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe	30
PID 2476 wrote to memory of 1280	2476	df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe	30
PID 2476 wrote to memory of 1280	2476	df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe	30
PID 2476 wrote to memory of 1280	2476	df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe	30
PID 2476 wrote to memory of 1280	2476	df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe	30
PID 2476 wrote to memory of 1280	2476	df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe	30
PID 2476 wrote to memory of 1280	2476	df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\df280dda64ba0e93d9e80779eb9b2491_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2476
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
  "{path}"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1280

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1280-12-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/1280-20-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/1280-7-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/1280-19-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/1280-4-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/1280-11-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/1280-10-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/1280-6-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/1280-21-0x0000000003660000-0x0000000004660000-memory.dmp

Filesize
16.0MB

Download
memory/1280-18-0x0000000003660000-0x0000000004660000-memory.dmp

Filesize
16.0MB

Download
memory/1280-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1280-17-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/1280-15-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/1280-16-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/1280-14-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/2476-13-0x0000000074270000-0x000000007481B000-memory.dmp

Filesize
5.7MB

Download
memory/2476-1-0x0000000074270000-0x000000007481B000-memory.dmp

Filesize
5.7MB

Download
memory/2476-0-0x0000000074271000-0x0000000074272000-memory.dmp

Filesize
4KB

Download
memory/2476-3-0x0000000074270000-0x000000007481B000-memory.dmp

Filesize
5.7MB

Download
memory/2476-2-0x0000000074270000-0x000000007481B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads