parallax | 583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a

Analysis

max time kernel
153s
max time network
48s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
03-10-2022 08:17

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General

Target

583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe
Size

201KB
MD5

4b061b31e2afb8b32fce1a32b9230040
SHA1

863b53797647010e8b68a3646b7085d9f62bbde5
SHA256

583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a
SHA512

aa460cc4ce1402bbd7f6cbac88d850880fd8b5a9b10ab7a3fe974d3cb15a360bcae416f585b81cd1d37fcddb88c18f01697acb3007f0111cf30aa61c80f6d8ac
SSDEEP

6144:Hza2Nj+MLxwkcWTq/81DDiSTz9nqEja3TXU0xtFi:HqEjk7l7Fi

Score

10^/10

parallax persistence rat upx

Malware Config

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
756	security.exe
1632	security.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1896-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1896-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1896-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1896-65-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1896-66-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1896-69-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1896-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1632-110-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1632-112-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Loads dropped DLL 5 IoCs

pid	Process
1896	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe
1896	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe
1896	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe
1896	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe
1896	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.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\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Security = "C:\\Users\\Admin\\AppData\\Roaming\\Security\\security.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2032 set thread context of 1896	2032	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	26
PID 756 set thread context of 1632	756	security.exe	31
PID 756 set thread context of 1988	756	security.exe	32

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe
Token: SeDebugPrivilege	1632	security.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2032	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe
1896	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe
756	security.exe
1632	security.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 1896	2032	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	26
PID 2032 wrote to memory of 1896	2032	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	26
PID 2032 wrote to memory of 1896	2032	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	26
PID 2032 wrote to memory of 1896	2032	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	26
PID 2032 wrote to memory of 1896	2032	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	26
PID 2032 wrote to memory of 1896	2032	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	26
PID 2032 wrote to memory of 1896	2032	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	26
PID 2032 wrote to memory of 1896	2032	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	26
PID 1896 wrote to memory of 1692	1896	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	27
PID 1896 wrote to memory of 1692	1896	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	27
PID 1896 wrote to memory of 1692	1896	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	27
PID 1896 wrote to memory of 1692	1896	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	27
PID 1692 wrote to memory of 2004	1692	cmd.exe	29
PID 1692 wrote to memory of 2004	1692	cmd.exe	29
PID 1692 wrote to memory of 2004	1692	cmd.exe	29
PID 1692 wrote to memory of 2004	1692	cmd.exe	29
PID 1896 wrote to memory of 756	1896	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	30
PID 1896 wrote to memory of 756	1896	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	30
PID 1896 wrote to memory of 756	1896	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	30
PID 1896 wrote to memory of 756	1896	583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe	30
PID 756 wrote to memory of 1632	756	security.exe	31
PID 756 wrote to memory of 1632	756	security.exe	31
PID 756 wrote to memory of 1632	756	security.exe	31
PID 756 wrote to memory of 1632	756	security.exe	31
PID 756 wrote to memory of 1632	756	security.exe	31
PID 756 wrote to memory of 1632	756	security.exe	31
PID 756 wrote to memory of 1632	756	security.exe	31
PID 756 wrote to memory of 1632	756	security.exe	31
PID 756 wrote to memory of 1988	756	security.exe	32
PID 756 wrote to memory of 1988	756	security.exe	32
PID 756 wrote to memory of 1988	756	security.exe	32
PID 756 wrote to memory of 1988	756	security.exe	32
PID 756 wrote to memory of 1988	756	security.exe	32
PID 756 wrote to memory of 1988	756	security.exe	32
PID 756 wrote to memory of 1988	756	security.exe	32
PID 756 wrote to memory of 1988	756	security.exe	32
PID 756 wrote to memory of 1988	756	security.exe	32

C:\Users\Admin\AppData\Local\Temp\583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe
"C:\Users\Admin\AppData\Local\Temp\583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Local\Temp\583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe
  "C:\Users\Admin\AppData\Local\Temp\583e2ec8a62c433ad740b5c1a3c90a8ee2dd96c10d24f965e9d25e704d531a4a.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1896
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\PFBXW.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1692
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Security" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Security\security.exe" /f
      4⤵
      Adds Run key to start application
      PID:2004
- - C:\Users\Admin\AppData\Roaming\Security\security.exe
    "C:\Users\Admin\AppData\Roaming\Security\security.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:756
  - - C:\Users\Admin\AppData\Roaming\Security\security.exe
      "C:\Users\Admin\AppData\Roaming\Security\security.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1632
  - - C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      4⤵
      PID:1988

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\PFBXW.bat

Filesize
147B

MD5
6f473a1ba53e043362047f72e20b34f4

SHA1
e8f121a589e1207ed950453376ee1d21b1223835

SHA256
5fbce2c77a90ba9edbcf60be3851ab81633b7c10b1babb624d475c7be589de4b

SHA512
b4976d40bc708ae6cddf367a5382cd532e4cf235b848cdaa4e4d317e06d9126e50745a7772591bc21dc7380689f4399e57501b0aa73cd231bce32e22d53b0818

Download Submit
C:\Users\Admin\AppData\Roaming\Security\security.exe

Filesize
201KB

MD5
43daa5a2fcb3007ac0dc9dca551bb958

SHA1
66a6d3153479c656594ac8c29ac46f17cc19e3a2

SHA256
1980887cb0f5a75880cbd4072780975efca9f7fb41b238cb8d39d4beef8c5258

SHA512
6669b7aae8f96c82030ec4aa8b00062e6609fbadd98a85a11a1bc46f8bf35e958886a75ae56c5aef7ba6e8466165d3f47794b9171785269795bcfbb6f9722d21

Download Submit
C:\Users\Admin\AppData\Roaming\Security\security.exe

Filesize
201KB

MD5
43daa5a2fcb3007ac0dc9dca551bb958

SHA1
66a6d3153479c656594ac8c29ac46f17cc19e3a2

SHA256
1980887cb0f5a75880cbd4072780975efca9f7fb41b238cb8d39d4beef8c5258

SHA512
6669b7aae8f96c82030ec4aa8b00062e6609fbadd98a85a11a1bc46f8bf35e958886a75ae56c5aef7ba6e8466165d3f47794b9171785269795bcfbb6f9722d21

Download Submit
C:\Users\Admin\AppData\Roaming\Security\security.exe

Filesize
201KB

MD5
43daa5a2fcb3007ac0dc9dca551bb958

SHA1
66a6d3153479c656594ac8c29ac46f17cc19e3a2

SHA256
1980887cb0f5a75880cbd4072780975efca9f7fb41b238cb8d39d4beef8c5258

SHA512
6669b7aae8f96c82030ec4aa8b00062e6609fbadd98a85a11a1bc46f8bf35e958886a75ae56c5aef7ba6e8466165d3f47794b9171785269795bcfbb6f9722d21

Download Submit
\Users\Admin\AppData\Roaming\Security\security.exe

Filesize
201KB

MD5
43daa5a2fcb3007ac0dc9dca551bb958

SHA1
66a6d3153479c656594ac8c29ac46f17cc19e3a2

SHA256
1980887cb0f5a75880cbd4072780975efca9f7fb41b238cb8d39d4beef8c5258

SHA512
6669b7aae8f96c82030ec4aa8b00062e6609fbadd98a85a11a1bc46f8bf35e958886a75ae56c5aef7ba6e8466165d3f47794b9171785269795bcfbb6f9722d21

Download Submit
\Users\Admin\AppData\Roaming\Security\security.exe

Filesize
201KB

MD5
43daa5a2fcb3007ac0dc9dca551bb958

SHA1
66a6d3153479c656594ac8c29ac46f17cc19e3a2

SHA256
1980887cb0f5a75880cbd4072780975efca9f7fb41b238cb8d39d4beef8c5258

SHA512
6669b7aae8f96c82030ec4aa8b00062e6609fbadd98a85a11a1bc46f8bf35e958886a75ae56c5aef7ba6e8466165d3f47794b9171785269795bcfbb6f9722d21

Download Submit
\Users\Admin\AppData\Roaming\Security\security.exe

Filesize
201KB

MD5
43daa5a2fcb3007ac0dc9dca551bb958

SHA1
66a6d3153479c656594ac8c29ac46f17cc19e3a2

SHA256
1980887cb0f5a75880cbd4072780975efca9f7fb41b238cb8d39d4beef8c5258

SHA512
6669b7aae8f96c82030ec4aa8b00062e6609fbadd98a85a11a1bc46f8bf35e958886a75ae56c5aef7ba6e8466165d3f47794b9171785269795bcfbb6f9722d21

Download Submit
\Users\Admin\AppData\Roaming\Security\security.exe

Filesize
201KB

MD5
43daa5a2fcb3007ac0dc9dca551bb958

SHA1
66a6d3153479c656594ac8c29ac46f17cc19e3a2

SHA256
1980887cb0f5a75880cbd4072780975efca9f7fb41b238cb8d39d4beef8c5258

SHA512
6669b7aae8f96c82030ec4aa8b00062e6609fbadd98a85a11a1bc46f8bf35e958886a75ae56c5aef7ba6e8466165d3f47794b9171785269795bcfbb6f9722d21

Download Submit
\Users\Admin\AppData\Roaming\Security\security.exe

Filesize
201KB

MD5
43daa5a2fcb3007ac0dc9dca551bb958

SHA1
66a6d3153479c656594ac8c29ac46f17cc19e3a2

SHA256
1980887cb0f5a75880cbd4072780975efca9f7fb41b238cb8d39d4beef8c5258

SHA512
6669b7aae8f96c82030ec4aa8b00062e6609fbadd98a85a11a1bc46f8bf35e958886a75ae56c5aef7ba6e8466165d3f47794b9171785269795bcfbb6f9722d21

Download Submit
memory/756-83-0x000000000051F000-0x0000000000531000-memory.dmp

Filesize
72KB

Download
memory/1632-110-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1632-112-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1896-69-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1896-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1896-70-0x0000000075A71000-0x0000000075A73000-memory.dmp

Filesize
8KB

Download
memory/1896-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1896-66-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1896-65-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1896-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1896-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1896-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1988-95-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1988-98-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1988-101-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1988-103-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1988-106-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1988-109-0x000007FEFC2F1000-0x000007FEFC2F3000-memory.dmp

Filesize
8KB

Download
memory/1988-94-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2032-56-0x000000000052C000-0x000000000053E000-memory.dmp

Filesize
72KB

Download