webmonitor | d6593053bda046cd96e0e5e508e0f57622c464738838b84984e35e683d46c414

General

Target

fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe
Size

1.9MB
MD5

fac4b5a9c4f10517f44d4ae172f6473c
SHA1

2304b22499e60fa87ea5f9d3fee5f6d9ecacf9ee
SHA256

d6593053bda046cd96e0e5e508e0f57622c464738838b84984e35e683d46c414
SHA512

6b8dc4430f6068eaac9d27e4f322d1ae921f56b9940e266ba44ed791917c37b14bb9cb1ea3b861da36d9efe44af7acf75264e19d60a5fb1e89deabd1afa1bdbc
SSDEEP

24576:qYOSCmr2OsBgo0q4wMEX1RTdVfm6ZWZmMv1XdyqTQV0QQXTMrBwtP9kvIuyR:qq/oHMEX1XVO6o91tn6IPtP9kvSR

Score

10^/10

webmonitor backdoor infostealer rat

Malware Config

Extracted

Family

webmonitor

C2

niiarmah.wm01.to:443

Attributes

config_key
4EcDHH7aWbl50LayUnuRlJWUXiKQWk0O
private_key
yvkn5wM8E
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

Processes:

resource	yara_rule
behavioral2/memory/4772-18-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral2/memory/4772-19-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral2/memory/4772-21-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral2/memory/4772-24-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral2/memory/4772-28-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

Processes:

resource	yara_rule
behavioral2/memory/1488-8-0x0000000004660000-0x0000000004672000-memory.dmp	CustAttr

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe

description pid process target process

PID 1488 set thread context of 4772 1488 fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

4692 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe

pid process

1488 fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe

description	pid	process	target process
PID 1488 set thread context of 4772	1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe	RegSvcs.exe

pid	process
4692	schtasks.exe

pid	process
1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exeRegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe
Token: SeShutdownPrivilege	4772	RegSvcs.exe
Token: SeCreatePagefilePrivilege	4772	RegSvcs.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exeRegSvcs.exe

description	pid	process	target process
PID 1488 wrote to memory of 4692	1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe	schtasks.exe
PID 1488 wrote to memory of 4692	1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe	schtasks.exe
PID 1488 wrote to memory of 4692	1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe	schtasks.exe
PID 1488 wrote to memory of 4772	1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe	RegSvcs.exe
PID 1488 wrote to memory of 4772	1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe	RegSvcs.exe
PID 1488 wrote to memory of 4772	1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe	RegSvcs.exe
PID 1488 wrote to memory of 4772	1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe	RegSvcs.exe
PID 1488 wrote to memory of 4772	1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe	RegSvcs.exe
PID 1488 wrote to memory of 4772	1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe	RegSvcs.exe
PID 1488 wrote to memory of 4772	1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe	RegSvcs.exe
PID 1488 wrote to memory of 4772	1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe	RegSvcs.exe
PID 1488 wrote to memory of 4772	1488	fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe	RegSvcs.exe
PID 4772 wrote to memory of 4432	4772	RegSvcs.exe	cmd.exe
PID 4772 wrote to memory of 4432	4772	RegSvcs.exe	cmd.exe
PID 4772 wrote to memory of 4432	4772	RegSvcs.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fac4b5a9c4f10517f44d4ae172f6473c_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WLmzCRrQBmjpU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE222.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4692
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4772
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BsAawwv3bGvzT0LM.bat" "
    3⤵
    PID:4432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

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\Temp\BsAawwv3bGvzT0LM.bat

Filesize
204B

MD5
660219dd388ac7b79d99fa11bf73b57d

SHA1
c206de7094d233a8ec1452329d38fc54cc34fd30

SHA256
0a1e292340ed9349f1718d3005cb5fb2008efadc93e63864005fb6113a3f9366

SHA512
633166721cbbc370efda43dae5a836c7cbf431ead2229678eea68fd76432e68012f565acdd0298657c24500b6c4728c8fdffd3cdb7d01c6258dc6c565783393b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE222.tmp

Filesize
1KB

MD5
148072513ca9e1d1c6a0169008076e24

SHA1
3a6ab6059f443ee8be21368aaabae5d2bdcb13a3

SHA256
cec519bb6792da31b4813437b7a1a331d11f92332edc96c91a3fa8605e73def8

SHA512
4963ce071b3c6d34588b50c9de2fca9eda344c50b36602746548ea58769418c4807c5d5d4c7c055da588eb97215e8a97aa43d12139ef49179b2687ba8583cbde

Download Submit
memory/1488-10-0x0000000004EF0000-0x0000000004F00000-memory.dmp

Filesize
64KB

Download
memory/1488-11-0x0000000006B80000-0x0000000006CB8000-memory.dmp

Filesize
1.2MB

Download
memory/1488-4-0x0000000004D70000-0x0000000004E02000-memory.dmp

Filesize
584KB

Download
memory/1488-5-0x0000000004EF0000-0x0000000004F00000-memory.dmp

Filesize
64KB

Download
memory/1488-6-0x0000000004CE0000-0x0000000004CEA000-memory.dmp

Filesize
40KB

Download
memory/1488-7-0x0000000004E10000-0x0000000004E66000-memory.dmp

Filesize
344KB

Download
memory/1488-8-0x0000000004660000-0x0000000004672000-memory.dmp

Filesize
72KB

Download
memory/1488-9-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/1488-0-0x0000000000090000-0x0000000000288000-memory.dmp

Filesize
2.0MB

Download
memory/1488-3-0x0000000005280000-0x0000000005824000-memory.dmp

Filesize
5.6MB

Download
memory/1488-12-0x0000000006D00000-0x0000000006DF4000-memory.dmp

Filesize
976KB

Download
memory/1488-2-0x0000000004C30000-0x0000000004CCC000-memory.dmp

Filesize
624KB

Download
memory/1488-1-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/1488-22-0x0000000074820000-0x0000000074FD0000-memory.dmp

Filesize
7.7MB

Download
memory/4772-21-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/4772-19-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/4772-24-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/4772-28-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/4772-18-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads