phorphiex | 794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22/09/2024, 22:21

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General

Target
SecuriteInfo.com.Trojan.DownLoader46.2135.11116.exe
Size 84KB
Sample240922-19wwfayblj
SHA256 794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979
MD5 a775d164cf76e9a9ff6afd7eb1e3ab2e
SHA1 0b390cd5a44a64296b592360b6b74ac66fb26026
SHA512 80b2d105d2fac2e56b7ea9e1b56057e94ffe594c314ea96668d387ab120b24be580c58d68d37aca07273d3ce80f0d74f072102469f35cb02e2295817e1f16808
SSDEEP 1536:5Ei+lO/FmavM28kR1hDzc3zcq1ZI9PiDQIyQaQG9JXVfKo:WTlROxNs3zLjI4t3UXVfKo
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

phorphiex discovery evasion execution loader persistence trojan worm

Malware Config

Extracted

Family

phorphiex

http://185.215.113.66/
http://91.202.233.141/

Wallets

0xCa90599132C4D88907Bd8E046540284aa468a035
TRuGGXNDM1cavQ1AqMQHG8yfxP4QWVSMN6
qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
XryzFMFVpDUvU7famUGf214EXD3xNUSmQf
rsXCXBf9SagxV8JfC12d8Bybk84oPdMNN9
AULzfBuUAPfCGAXoG5Vq14aP9s6fx3AH4Z
LTK4xdKPAgFHPLan8kriAD7eY4heyy73mB
MP8GEm8QpYgQYaMo8oM5NQhRBgDGiLZW5Q
4BB7ckkaPTyADc8trtuwDoZxywaR4eNL5cDJ3KBjq9GraN4mUFztf7mLS7WgT7Bh7uPqpjvA4ypVwXKCJ1vvLWWAFvSmDoD
15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC
1BzmrjmKPKSR2hH5BeJySfiVA676E8DYaK
ltc1qt0n3f0t7vz9k0mvcswk477shrxwjhf9sj5ykrp
3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc
3BiS1jaRpWtkqtfZGp9f1rXXts5DyUkaBX
DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA
t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh
stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj
bnb1msyt0djx4ecspfxg5en0ye465kg3kmv9utzml2
bc1ppypcmu3684n648gyj62gjp2rw0xy7w3vwfamatlg29ajp4z52desafa0sr
bc1qc9edl4hzl9jyt8twdad3zjeh2df2znq96tdezd
bitcoincash:qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r
GBQJMXYXPRIWFMXIFJR35ZB7LRKMB4PHCIUAUFR3TKUL6RDBZVLZEUJ3

Attributes

mutex
0t6rv5xwbh
user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Signatures

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4"	sysklnorbcv.exe

Phorphiex payload 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001db76-3.dat	family_phorphiex

Phorphiex, Phorpiex
Phorphiex or Phorpiex Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.
worm trojan loader phorphiex

Windows security bypass 2 TTPs 6 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	sysklnorbcv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	sysklnorbcv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	sysklnorbcv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	sysklnorbcv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	sysklnorbcv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	sysklnorbcv.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4048	powershell.exe

Stops running service(s) 4 TTPs
evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	sysklnorbcv.exe

Executes dropped EXE 1 IoCs

pid	Process
4124	sysklnorbcv.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	sysklnorbcv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	sysklnorbcv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	sysklnorbcv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	sysklnorbcv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1"	sysklnorbcv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	sysklnorbcv.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	sysklnorbcv.exe

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\sysklnorbcv.exe"	SecuriteInfo.com.Trojan.DownLoader46.2135.11116.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\sysklnorbcv.exe	SecuriteInfo.com.Trojan.DownLoader46.2135.11116.exe
File opened for modification	C:\Windows\sysklnorbcv.exe	SecuriteInfo.com.Trojan.DownLoader46.2135.11116.exe

Launches sc.exe 5 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2508	sc.exe
1592	sc.exe
4064	sc.exe
4560	sc.exe
3808	sc.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 10 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SecuriteInfo.com.Trojan.DownLoader46.2135.11116.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sysklnorbcv.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4048	powershell.exe
4048	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4048	powershell.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 4124	1916	SecuriteInfo.com.Trojan.DownLoader46.2135.11116.exe	84
PID 1916 wrote to memory of 4124	1916	SecuriteInfo.com.Trojan.DownLoader46.2135.11116.exe	84
PID 1916 wrote to memory of 4124	1916	SecuriteInfo.com.Trojan.DownLoader46.2135.11116.exe	84
PID 4124 wrote to memory of 2036	4124	sysklnorbcv.exe	89
PID 4124 wrote to memory of 2036	4124	sysklnorbcv.exe	89
PID 4124 wrote to memory of 2036	4124	sysklnorbcv.exe	89
PID 4124 wrote to memory of 4428	4124	sysklnorbcv.exe	91
PID 4124 wrote to memory of 4428	4124	sysklnorbcv.exe	91
PID 4124 wrote to memory of 4428	4124	sysklnorbcv.exe	91
PID 2036 wrote to memory of 4048	2036	cmd.exe	93
PID 2036 wrote to memory of 4048	2036	cmd.exe	93
PID 2036 wrote to memory of 4048	2036	cmd.exe	93
PID 4428 wrote to memory of 1592	4428	cmd.exe	94
PID 4428 wrote to memory of 1592	4428	cmd.exe	94
PID 4428 wrote to memory of 1592	4428	cmd.exe	94
PID 4428 wrote to memory of 4064	4428	cmd.exe	95
PID 4428 wrote to memory of 4064	4428	cmd.exe	95
PID 4428 wrote to memory of 4064	4428	cmd.exe	95
PID 4428 wrote to memory of 4560	4428	cmd.exe	96
PID 4428 wrote to memory of 4560	4428	cmd.exe	96
PID 4428 wrote to memory of 4560	4428	cmd.exe	96
PID 4428 wrote to memory of 3808	4428	cmd.exe	97
PID 4428 wrote to memory of 3808	4428	cmd.exe	97
PID 4428 wrote to memory of 3808	4428	cmd.exe	97
PID 4428 wrote to memory of 2508	4428	cmd.exe	98
PID 4428 wrote to memory of 2508	4428	cmd.exe	98
PID 4428 wrote to memory of 2508	4428	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader46.2135.11116.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader46.2135.11116.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Windows\sysklnorbcv.exe
  C:\Windows\sysklnorbcv.exe
  2⤵
  - Modifies security service
  - Windows security bypass
  - Checks computer location settings
  - Executes dropped EXE
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4124
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c powershell -Command "Add-MpPreference -ExclusionPath $env:windir; Add-MpPreference -ExclusionPath $env:TEMP; Add-MpPreference -ExclusionPath $env:USERPROFILE"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2036
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -Command "Add-MpPreference -ExclusionPath $env:windir; Add-MpPreference -ExclusionPath $env:TEMP; Add-MpPreference -ExclusionPath $env:USERPROFILE"
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4048
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop DoSvc & sc stop BITS
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4428
  - - C:\Windows\SysWOW64\sc.exe
      sc stop UsoSvc
      4⤵
      Launches sc.exe
      System Location Discovery: System Language Discovery
      PID:1592
  - - C:\Windows\SysWOW64\sc.exe
      sc stop WaaSMedicSvc
      4⤵
      Launches sc.exe
      System Location Discovery: System Language Discovery
      PID:4064
  - - C:\Windows\SysWOW64\sc.exe
      sc stop wuauserv
      4⤵
      Launches sc.exe
      System Location Discovery: System Language Discovery
      PID:4560
  - - C:\Windows\SysWOW64\sc.exe
      sc stop DoSvc
      4⤵
      Launches sc.exe
      System Location Discovery: System Language Discovery
      PID:3808
  - - C:\Windows\SysWOW64\sc.exe
      sc stop BITS
      4⤵
      Launches sc.exe
      System Location Discovery: System Language Discovery
      PID:2508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

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Downloads

1[1]

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\5JGBC19U\1[1]
Size 100KB
SHA256 7c60a0bab1d7581bbba576b709837ef75a5c0833acb584bca3f7c780e70f6c14
MD5 b37046319a495742af2d1d9e5ccc0ea9
SHA1 d13ca92d5a17068773a58d167af40b77813be532
SHA512 5e7ad4b7d55f0d5e4c7a17cabccc54d9568cf4b98a8e0566607f253e238d090e111e5f6f44b23617e9d1a9fc2370a10fa761cbe50a9d17a182da31dcd8ad2b48
SSDEEP 3072:/iajm20Nz0uC8clD92L4bishf2IBV6963kmMj:/iajqAZ8cN928bishf2Iy63kbj
MD5 SHA1 SHA512 SSDEEP

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__PSScriptPolicyTest_b3wvgb5p.w15.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b3wvgb5p.w15.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

sysklnorbcv.exe

Path C:\Windows\sysklnorbcv.exe
Size 84KB
SHA256 794ba0b949b2144057a1b68752d8fa324f1a211afc2231328be82d17f9308979
MD5 a775d164cf76e9a9ff6afd7eb1e3ab2e
SHA1 0b390cd5a44a64296b592360b6b74ac66fb26026
SHA512 80b2d105d2fac2e56b7ea9e1b56057e94ffe594c314ea96668d387ab120b24be580c58d68d37aca07273d3ce80f0d74f072102469f35cb02e2295817e1f16808
SSDEEP 1536:5Ei+lO/FmavM28kR1hDzc3zcq1ZI9PiDQIyQaQG9JXVfKo:WTlROxNs3zLjI4t3UXVfKo
MD5 SHA1 SHA512 SSDEEP

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memory/4048-33-0x0000000006740000-0x000000000675E000-memory.dmp

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memory/4048-35-0x0000000007B30000-0x00000000081AA000-memory.dmp

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memory/4048-9-0x0000000005AE0000-0x0000000005B46000-memory.dmp

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memory/4048-7-0x00000000051D0000-0x00000000051F2000-memory.dmp

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memory/4048-19-0x0000000005D60000-0x00000000060B4000-memory.dmp

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memory/4048-20-0x0000000006150000-0x000000000616E000-memory.dmp

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memory/4048-21-0x0000000006170000-0x00000000061BC000-memory.dmp

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memory/4048-22-0x0000000007310000-0x0000000007342000-memory.dmp

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memory/4048-23-0x00000000700D0000-0x000000007011C000-memory.dmp

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memory/4048-6-0x0000000005300000-0x0000000005928000-memory.dmp

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memory/4048-34-0x0000000007350000-0x00000000073F3000-memory.dmp

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memory/4048-8-0x0000000005270000-0x00000000052D6000-memory.dmp

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memory/4048-36-0x00000000074B0000-0x00000000074CA000-memory.dmp

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memory/4048-37-0x0000000007500000-0x000000000750A000-memory.dmp

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memory/4048-38-0x0000000007710000-0x00000000077A6000-memory.dmp

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memory/4048-39-0x00000000076B0000-0x00000000076C1000-memory.dmp

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memory/4048-40-0x00000000076D0000-0x00000000076DE000-memory.dmp

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memory/4048-41-0x00000000076E0000-0x00000000076F4000-memory.dmp

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memory/4048-42-0x00000000077D0000-0x00000000077EA000-memory.dmp

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memory/4048-43-0x00000000077B0000-0x00000000077B8000-memory.dmp

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memory/4048-5-0x0000000004BC0000-0x0000000004BF6000-memory.dmp

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