parallax | bc2d39c8020a92de04d4a0749449595c2317d76dc607c56d2c26edf5fa3ef004

Analysis

max time kernel
69s
max time network
139s
platform
windows10_x64
resource
win10v20210408
submitted
28-09-2021 09:45

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General

Target

FireFoxExtension.exe
Size

19.5MB
MD5

2e309f6569ad98bc9dda1178dbcf6296
SHA1

4c07d69e84935842ac2ce9a8ded577f1fc17280c
SHA256

bc2d39c8020a92de04d4a0749449595c2317d76dc607c56d2c26edf5fa3ef004
SHA512

c87bd9836ad2ec45e4192af135d23a5352b3b9331f813902e2f3627a8c913a1afb9c9eb1cb2b8089f236ce971b457a15e15b2c0b41aa5a8aa7cb92d9099f1b81

Score

10^/10

parallax rat spyware stealer

Malware Config

Signatures

ParallaxRat
ParallaxRat is a multipurpose RAT written in MASM.
rat parallax

ParallaxRat payload 1 IoCs

Detects payload of Parallax Rat, a small portable Rat usually digitally signed with a Sectigo certificate.

resource	yara_rule
behavioral2/memory/3980-196-0x0000000000400000-0x0000000000424000-memory.dmp	parallax_rat

Blocklisted process makes network request 1 IoCs

flow	pid	Process
15	3980	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
680	FireFoxExtension.tmp
4012	opera.exe

Loads dropped DLL 1 IoCs

pid	Process
4012	opera.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\P:	mountvol.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\opera.job	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4012	opera.exe
4064	cmd.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4064	cmd.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 992 wrote to memory of 680	992	FireFoxExtension.exe	68
PID 992 wrote to memory of 680	992	FireFoxExtension.exe	68
PID 992 wrote to memory of 680	992	FireFoxExtension.exe	68
PID 680 wrote to memory of 1168	680	FireFoxExtension.tmp	69
PID 680 wrote to memory of 1168	680	FireFoxExtension.tmp	69
PID 680 wrote to memory of 1168	680	FireFoxExtension.tmp	69
PID 680 wrote to memory of 1216	680	FireFoxExtension.tmp	70
PID 680 wrote to memory of 1216	680	FireFoxExtension.tmp	70
PID 680 wrote to memory of 1216	680	FireFoxExtension.tmp	70
PID 680 wrote to memory of 1320	680	FireFoxExtension.tmp	71
PID 680 wrote to memory of 1320	680	FireFoxExtension.tmp	71
PID 680 wrote to memory of 1320	680	FireFoxExtension.tmp	71
PID 1320 wrote to memory of 1920	1320	cmd.exe	75
PID 1320 wrote to memory of 1920	1320	cmd.exe	75
PID 1320 wrote to memory of 1920	1320	cmd.exe	75
PID 1168 wrote to memory of 1688	1168	cmd.exe	76
PID 1168 wrote to memory of 1688	1168	cmd.exe	76
PID 1168 wrote to memory of 1688	1168	cmd.exe	76
PID 680 wrote to memory of 2180	680	FireFoxExtension.tmp	77
PID 680 wrote to memory of 2180	680	FireFoxExtension.tmp	77
PID 680 wrote to memory of 2180	680	FireFoxExtension.tmp	77
PID 680 wrote to memory of 2336	680	FireFoxExtension.tmp	79
PID 680 wrote to memory of 2336	680	FireFoxExtension.tmp	79
PID 680 wrote to memory of 2336	680	FireFoxExtension.tmp	79
PID 680 wrote to memory of 2416	680	FireFoxExtension.tmp	81
PID 680 wrote to memory of 2416	680	FireFoxExtension.tmp	81
PID 680 wrote to memory of 2416	680	FireFoxExtension.tmp	81
PID 680 wrote to memory of 2768	680	FireFoxExtension.tmp	82
PID 680 wrote to memory of 2768	680	FireFoxExtension.tmp	82
PID 680 wrote to memory of 2768	680	FireFoxExtension.tmp	82
PID 680 wrote to memory of 4012	680	FireFoxExtension.tmp	85
PID 680 wrote to memory of 4012	680	FireFoxExtension.tmp	85
PID 680 wrote to memory of 4012	680	FireFoxExtension.tmp	85
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86
PID 4012 wrote to memory of 4064	4012	opera.exe	86

C:\Users\Admin\AppData\Local\Temp\FireFoxExtension.exe
"C:\Users\Admin\AppData\Local\Temp\FireFoxExtension.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:992
- C:\Users\Admin\AppData\Local\Temp\is-JHNSD.tmp\FireFoxExtension.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-JHNSD.tmp\FireFoxExtension.tmp" /SL5="$2011E,19610817,831488,C:\Users\Admin\AppData\Local\Temp\FireFoxExtension.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:680
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C mountvol P: /D
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1168
  - - C:\Windows\SysWOW64\mountvol.exe
      mountvol P: /D
      4⤵
      Enumerates connected drives
      PID:1688
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C bcdedit /set {bootmgr} path \EFI\Boot\bareflank.efi
    3⤵
    PID:1216
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C setx /m PATH "%PATH%C:\Users\Admin\AppData\Local\Temp\is-IST7N.tmp"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1320
  - - C:\Windows\SysWOW64\setx.exe
      setx /m PATH "C:\ProgramData\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Users\Admin\AppData\Local\Microsoft\WindowsApps;C:\Users\Admin\AppData\Local\Temp\is-IST7N.tmp"
      4⤵
      PID:1920
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C ""C:\Users\Admin\AppData\Local\Temp\is-IST7N.tmp\devcon.exe" remove "ROOT\bareflank""
    3⤵
    PID:2180
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C ""C:\Users\Admin\AppData\Local\Temp\is-IST7N.tmp\devcon.exe" install "C:\Users\Admin\AppData\Local\Temp\is-IST7N.tmp\bareflank.inf" "ROOT\bareflank""
    3⤵
    PID:2336
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C ""C:\Users\Admin\AppData\Local\Temp\is-IST7N.tmp\devcon.exe" remove "ROOT\bfbuilder""
    3⤵
    PID:2416
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C ""C:\Users\Admin\AppData\Local\Temp\is-IST7N.tmp\devcon.exe" install "C:\Users\Admin\AppData\Local\Temp\is-IST7N.tmp\bfbuilder.inf" "ROOT\bfbuilder""
    3⤵
    PID:2768
- - C:\Users\Admin\AppData\Roaming\opera.exe
    "C:\Users\Admin\AppData\Roaming\opera.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4012
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      PID:4064
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\system32\cmd.exe"
        5⤵
        Blocklisted process makes network request
        Drops file in Windows directory
        
        PID:3980

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/680-118-0x0000000000880000-0x0000000000881000-memory.dmp

Filesize
4KB

Download
memory/992-117-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/3980-196-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3980-176-0x00007FFEF3981000-0x00007FFEF3A8E7A3-memory.dmp

Filesize
1.1MB

Download
memory/3980-175-0x0000000000B50000-0x0000000000B59000-memory.dmp

Filesize
36KB

Download
memory/3980-170-0x00007FFEF3980000-0x00007FFEF3B5B000-memory.dmp

Filesize
1.9MB

Download
memory/4064-136-0x0000000077919000-0x0000000077919005-memory.dmp

Filesize
5B

Download
memory/4064-158-0x00007FFEF3980000-0x00007FFEF3B5B000-memory.dmp

Filesize
1.9MB

Download
memory/4064-157-0x0000000000E00000-0x0000000000E08000-memory.dmp

Filesize
32KB

Download
memory/4064-140-0x0000000000500000-0x0000000000502000-memory.dmp

Filesize
8KB

Download