0723d19453b4817a76e85faeef4d255c9db8dbfee3f7c615632f9d09b452aa59

General

Target
Seven.exe
Size 139KB
Sample240428-kw28ascd21
SHA256 afd7657f941024ef69ca34d1e61e640c5523b19b0fad4dcb1c9f1b01a6fa166f
MD5 6503f847c3281ff85b304fc674b62580
SHA1 947536e0741c085f37557b7328b067ef97cb1a61
SHA512 abc3b32a1cd7d0a60dd7354a9fcdff0bc37ec8a20bb2a8258353716d820f62d343c6ba9385ba893be0cca981bbb9ab4e189ccfeee6dd77cc0dc723e975532174
SSDEEP 3072:miS4omp03WQthI/9S3BZi08iRQ1G78IVn27bSfcJd8lto:miS4ompB9S3BZi0a1G78IVhcTct
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

evasion trojan

Malware Config

Signatures

Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	Seven.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	Seven.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	Seven.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	Seven.exe

UAC bypass 3 TTPs 2 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLua = "1"	Seven.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "1"	Seven.exe

Blocks application from running via registry modification 1 IoCs

Adds application to list of disallowed applications.

evasion

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun = "1"	Seven.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	Seven.exe

Disables Task Manager via registry modification
evasion

Disables cmd.exe use via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableCMD = "1"	Seven.exe

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-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	Seven.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	Seven.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLua	Seven.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLua = "1"	Seven.exe

Drops file in System32 directory 9 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\Desktop	cmd.exe
File created	C:\Windows\System32\Desktop	cmd.exe
File created	C:\Windows\System32\Desktop	cmd.exe
File opened for modification	C:\Windows\System32\Desktop	cmd.exe
File opened for modification	C:\Windows\System32\Desktop	cmd.exe
File created	C:\Windows\System32\Desktop	cmd.exe
File opened for modification	C:\Windows\System32\Desktop	attrib.exe
File opened for modification	C:\Windows\System32\Desktop	attrib.exe
File opened for modification	C:\Windows\System32\Desktop	attrib.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1748	powershell.exe
1748	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1748	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1496 wrote to memory of 1748	1496	Seven.exe	85
PID 1496 wrote to memory of 1748	1496	Seven.exe	85
PID 1496 wrote to memory of 2492	1496	Seven.exe	89
PID 1496 wrote to memory of 2492	1496	Seven.exe	89
PID 1496 wrote to memory of 2668	1496	Seven.exe	90
PID 1496 wrote to memory of 2668	1496	Seven.exe	90
PID 1496 wrote to memory of 1900	1496	Seven.exe	91
PID 1496 wrote to memory of 1900	1496	Seven.exe	91
PID 1496 wrote to memory of 5056	1496	Seven.exe	92
PID 1496 wrote to memory of 5056	1496	Seven.exe	92
PID 1496 wrote to memory of 4924	1496	Seven.exe	93
PID 1496 wrote to memory of 4924	1496	Seven.exe	93
PID 1496 wrote to memory of 2976	1496	Seven.exe	94
PID 1496 wrote to memory of 2976	1496	Seven.exe	94
PID 1496 wrote to memory of 2784	1496	Seven.exe	95
PID 1496 wrote to memory of 2784	1496	Seven.exe	95
PID 1900 wrote to memory of 4056	1900	cmd.exe	96
PID 1900 wrote to memory of 4056	1900	cmd.exe	96
PID 2976 wrote to memory of 5068	2976	cmd.exe	98
PID 2976 wrote to memory of 5068	2976	cmd.exe	98
PID 2784 wrote to memory of 2344	2784	cmd.exe	99
PID 2784 wrote to memory of 2344	2784	cmd.exe	99

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun = "1"	Seven.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "1"	Seven.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLua = "1"	Seven.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
5068	attrib.exe
2344	attrib.exe
4056	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Seven.exe
"C:\Users\Admin\AppData\Local\Temp\Seven.exe"
1⤵
- Modifies Windows Defender Real-time Protection settings
- UAC bypass
- Blocks application from running via registry modification
- Disables RegEdit via registry modification
- Disables cmd.exe use via registry modification
- Checks computer location settings
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1496
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" Get-MpPreference -verbose
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1748
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /C copy C:\Users\Admin\Desktop C:\Users\Admin\Desktop
  2⤵
  PID:2492
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /C copy C:\Users\Admin\Desktop C:\Windows\System32\Desktop
  2⤵
  - Drops file in System32 directory
  PID:2668
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /C attrib +h C:\Windows\System32\Desktop
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1900
- - C:\Windows\system32\attrib.exe
    attrib +h C:\Windows\System32\Desktop
    3⤵
    - Drops file in System32 directory
    - Views/modifies file attributes
    PID:4056
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /C copy C:\Users\Admin\Desktop C:\Windows\System32\Desktop
  2⤵
  - Drops file in System32 directory
  PID:5056
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /C copy C:\Users\Admin\Desktop C:\Windows\System32\Desktop
  2⤵
  - Drops file in System32 directory
  PID:4924
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /C attrib +h C:\Windows\System32\Desktop
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2976
- - C:\Windows\system32\attrib.exe
    attrib +h C:\Windows\System32\Desktop
    3⤵
    - Drops file in System32 directory
    - Views/modifies file attributes
    PID:5068
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /C attrib +h C:\Windows\System32\Desktop
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2784
- - C:\Windows\system32\attrib.exe
    attrib +h C:\Windows\System32\Desktop
    3⤵
    - Drops file in System32 directory
    - Views/modifies file attributes
    PID:2344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Hide Artifacts

1

T1564

Hidden Files and Directories

1

T1564.001

Impair Defenses

3

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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__PSScriptPolicyTest_1zqqub45.p2y.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1zqqub45.p2y.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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Desktop

Path C:\Windows\System32\Desktop
Size 354B
SHA256 bef68b383ef167cf68c8b882235ee2a27a85f399308bf42e65e4cd5052fe517a
MD5 c71d8db501d12627c4c20c062f3a54c8
SHA1 c51dc4249f7f336482b8fc1bb66d88a08e1145f6
SHA512 aaa7584961a2d1353bc14c4fe8bf765b04dab8c6d49cecb24fb583339f672c96de280db37565af0d01a952f8662c9efe55651280b03d4ec6b35e9920af73a5ec
MD5 SHA1 SHA512

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Desktop

Path C:\Windows\System32\Desktop
Size 4KB
SHA256 d456a9ca72176f99830ca9634560dc9e3850f40ef487d90f672e01c0094b3b62
MD5 80193f0130b4b3f688535acbdd535a74
SHA1 98a1e9b946979ea6fdf112bdb77f3f22d449fd66
SHA512 e9256f6d5425d47509a5b149ae03df90a3d1f78f84704543962bd9b04a04f0ccfae8296dba53fd98d8d308bbbbe9d34af66ed56e5b0d23df057d0ebdc1066d23
SSDEEP 96:MuUdo0J6LuT69hGcTGQRPIPYh+TU8bZ4fKUx0:Mhow69oiRwgUTEi/
MD5 SHA1 SHA512 SSDEEP

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memory/1748-0-0x0000028AD5320000-0x0000028AD5342000-memory.dmp

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memory/1748-10-0x00007FFF73B20000-0x00007FFF745E1000-memory.dmp

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memory/1748-12-0x0000028AD4BB0000-0x0000028AD4BC0000-memory.dmp

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memory/1748-11-0x0000028AD4BB0000-0x0000028AD4BC0000-memory.dmp

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memory/1748-15-0x00007FFF73B20000-0x00007FFF745E1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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