ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550

Analysis

max time kernel
33s
max time network
74s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
27-09-2022 11:29

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General

Target

ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
Size

36KB
MD5

c71e89f8fc213c73ab59fc3e62c258f3
SHA1

2dfb26333f75d629b21ccf50e3612b4a9e2c4a0f
SHA256

ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550
SHA512

83960b66993ffb45b2962b38621ee67cb4a8b333dbb6d52d84cb88c61c7c27af0dac09210dfa8633b7f7455743203333392c9e7a89623478b33ba3c3bfdb5606
SSDEEP

192:60RmaRBUda7n9JlU2g1jJMOEyKbIYymt5XTtEyKihoynlwHLHTgH9N2tpgRmd8MS:60oBdq9JGqO+NxhcAdN2tpgwd5ASc

Score

10^/10

evasion trojan

Malware Config

Signatures

UAC bypass 3 TTPs 6 IoCs

evasion trojan

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe

Downloads MZ/PE file

Executes dropped EXE 4 IoCs

pid	Process
324	k4.exe
1780	k4.exe
324	k4.exe
1780	k4.exe

Loads dropped DLL 4 IoCs

pid	Process
1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe

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

System Information Discovery
T1082

Kills process with taskkill 2 IoCs

evasion

pid	Process
1860	taskkill.exe
1860	taskkill.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 324	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	30
PID 1964 wrote to memory of 324	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	30
PID 1964 wrote to memory of 324	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	30
PID 1964 wrote to memory of 324	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	30
PID 1964 wrote to memory of 1780	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	31
PID 1964 wrote to memory of 1780	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	31
PID 1964 wrote to memory of 1780	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	31
PID 1964 wrote to memory of 1780	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	31
PID 1964 wrote to memory of 652	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	32
PID 1964 wrote to memory of 652	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	32
PID 1964 wrote to memory of 652	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	32
PID 1964 wrote to memory of 652	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	32
PID 1964 wrote to memory of 324	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	64
PID 1964 wrote to memory of 324	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	64
PID 1964 wrote to memory of 324	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	64
PID 1964 wrote to memory of 324	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	64
PID 1964 wrote to memory of 1780	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	65
PID 1964 wrote to memory of 1780	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	65
PID 1964 wrote to memory of 1780	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	65
PID 1964 wrote to memory of 1780	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	65
PID 1964 wrote to memory of 652	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	66
PID 1964 wrote to memory of 652	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	66
PID 1964 wrote to memory of 652	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	66
PID 1964 wrote to memory of 652	1964	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe	66

System policy modification 1 TTPs 6 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe

C:\Users\Admin\AppData\Local\Temp\ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
"C:\Users\Admin\AppData\Local\Temp\ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe"
1⤵
- UAC bypass
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1964
- C:\Users\Public\Documents\k4.exe
  C:/Users/Public/Documents/k4.exe
  2⤵
  - Executes dropped EXE
  PID:324
- C:\Users\Public\Documents\k4.exe
  C:/Users/Public/Documents/k4.exe /D
  2⤵
  - Executes dropped EXE
  PID:1780
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c taskkill /f /t /im k4.exe
  2⤵
  PID:652
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /t /im k4.exe
    3⤵
    - Kills process with taskkill
    PID:1860

C:\Users\Admin\AppData\Local\Temp\ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe
"C:\Users\Admin\AppData\Local\Temp\ec827ffc5601ab5618483edb34adbce6ef5d70c5715118135890e2bcca8a6550.exe"
1⤵
- UAC bypass
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1964
- C:\Users\Public\Documents\k4.exe
  C:/Users/Public/Documents/k4.exe
  2⤵
  - Executes dropped EXE
  PID:324
- C:\Users\Public\Documents\k4.exe
  C:/Users/Public/Documents/k4.exe /D
  2⤵
  - Executes dropped EXE
  PID:1780
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c taskkill /f /t /im k4.exe
  2⤵
  PID:652
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /t /im k4.exe
    3⤵
    - Kills process with taskkill
    PID:1860

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\Documents\k4.exe

Filesize
892KB

MD5
33e29221e2825001d32f78632217d250

SHA1
9122127fc91790a1edb78003e9b58a9b00355ed5

SHA256
65d0b20a4dc4911fbb91683eb6488d3d3493fa4584bbdfb4e942f203bef0030d

SHA512
01d5c6ded3a83d81371e94fefb1debabb1d003c86ab3cf7145d28fb15fcfd4f8b763f6711f99c5afd9bf90f02a7af993efa5945d4f8bb6a3649b5fd86414ae93

Download Submit
C:\Users\Public\Documents\k4.exe

Filesize
892KB

MD5
33e29221e2825001d32f78632217d250

SHA1
9122127fc91790a1edb78003e9b58a9b00355ed5

SHA256
65d0b20a4dc4911fbb91683eb6488d3d3493fa4584bbdfb4e942f203bef0030d

SHA512
01d5c6ded3a83d81371e94fefb1debabb1d003c86ab3cf7145d28fb15fcfd4f8b763f6711f99c5afd9bf90f02a7af993efa5945d4f8bb6a3649b5fd86414ae93

Download Submit
C:\Users\Public\Documents\k4.exe

Filesize
892KB

MD5
33e29221e2825001d32f78632217d250

SHA1
9122127fc91790a1edb78003e9b58a9b00355ed5

SHA256
65d0b20a4dc4911fbb91683eb6488d3d3493fa4584bbdfb4e942f203bef0030d

SHA512
01d5c6ded3a83d81371e94fefb1debabb1d003c86ab3cf7145d28fb15fcfd4f8b763f6711f99c5afd9bf90f02a7af993efa5945d4f8bb6a3649b5fd86414ae93

Download Submit
C:\Users\Public\Documents\k4.exe

Filesize
892KB

MD5
33e29221e2825001d32f78632217d250

SHA1
9122127fc91790a1edb78003e9b58a9b00355ed5

SHA256
65d0b20a4dc4911fbb91683eb6488d3d3493fa4584bbdfb4e942f203bef0030d

SHA512
01d5c6ded3a83d81371e94fefb1debabb1d003c86ab3cf7145d28fb15fcfd4f8b763f6711f99c5afd9bf90f02a7af993efa5945d4f8bb6a3649b5fd86414ae93

Download Submit
C:\Users\Public\Documents\k4.exe

Filesize
892KB

MD5
33e29221e2825001d32f78632217d250

SHA1
9122127fc91790a1edb78003e9b58a9b00355ed5

SHA256
65d0b20a4dc4911fbb91683eb6488d3d3493fa4584bbdfb4e942f203bef0030d

SHA512
01d5c6ded3a83d81371e94fefb1debabb1d003c86ab3cf7145d28fb15fcfd4f8b763f6711f99c5afd9bf90f02a7af993efa5945d4f8bb6a3649b5fd86414ae93

Download Submit
C:\Users\Public\Documents\k4.exe

Filesize
892KB

MD5
33e29221e2825001d32f78632217d250

SHA1
9122127fc91790a1edb78003e9b58a9b00355ed5

SHA256
65d0b20a4dc4911fbb91683eb6488d3d3493fa4584bbdfb4e942f203bef0030d

SHA512
01d5c6ded3a83d81371e94fefb1debabb1d003c86ab3cf7145d28fb15fcfd4f8b763f6711f99c5afd9bf90f02a7af993efa5945d4f8bb6a3649b5fd86414ae93

Download Submit
\Users\Public\Documents\RDSv1.dll

Filesize
24KB

MD5
c68a7ddbed2cd20279b87e733c9008db

SHA1
eef926d0069c9b54e609302b64267d4721f8ea7a

SHA256
7e05127f15bb1967ca4598d9fa8a4c7867b1658b684e50874a9513e4ff23ee53

SHA512
db21961744b62f0a772c7bd309592898630deeb1a18e79c3b289e5d187521cfdcc37e4a6a18149a697ddff7c121ec6f73685a8dce8e1181552558947d13e83bf

Download Submit
\Users\Public\Documents\RDSv1.dll

Filesize
24KB

MD5
c68a7ddbed2cd20279b87e733c9008db

SHA1
eef926d0069c9b54e609302b64267d4721f8ea7a

SHA256
7e05127f15bb1967ca4598d9fa8a4c7867b1658b684e50874a9513e4ff23ee53

SHA512
db21961744b62f0a772c7bd309592898630deeb1a18e79c3b289e5d187521cfdcc37e4a6a18149a697ddff7c121ec6f73685a8dce8e1181552558947d13e83bf

Download Submit
\Users\Public\Documents\k4.exe

Filesize
892KB

MD5
33e29221e2825001d32f78632217d250

SHA1
9122127fc91790a1edb78003e9b58a9b00355ed5

SHA256
65d0b20a4dc4911fbb91683eb6488d3d3493fa4584bbdfb4e942f203bef0030d

SHA512
01d5c6ded3a83d81371e94fefb1debabb1d003c86ab3cf7145d28fb15fcfd4f8b763f6711f99c5afd9bf90f02a7af993efa5945d4f8bb6a3649b5fd86414ae93

Download Submit
\Users\Public\Documents\k4.exe

Filesize
892KB

MD5
33e29221e2825001d32f78632217d250

SHA1
9122127fc91790a1edb78003e9b58a9b00355ed5

SHA256
65d0b20a4dc4911fbb91683eb6488d3d3493fa4584bbdfb4e942f203bef0030d

SHA512
01d5c6ded3a83d81371e94fefb1debabb1d003c86ab3cf7145d28fb15fcfd4f8b763f6711f99c5afd9bf90f02a7af993efa5945d4f8bb6a3649b5fd86414ae93

Download Submit
memory/324-59-0x000007FEFBFE1000-0x000007FEFBFE3000-memory.dmp

Filesize
8KB

Download
memory/324-59-0x000007FEFBFE1000-0x000007FEFBFE3000-memory.dmp

Filesize
8KB

Download
memory/1964-54-0x0000000076411000-0x0000000076413000-memory.dmp

Filesize
8KB

Download
memory/1964-54-0x0000000076411000-0x0000000076413000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads