8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a

Analysis

max time kernel
187s
max time network
193s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01/12/2022, 01:02

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General

Target

8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe
Size

1.1MB
MD5

9341f7097b0c8f44761b2b2067dcb383
SHA1

a9e2ebd22d10b2ad3856be7967ec2c9d0e7ed55e
SHA256

8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a
SHA512

a0efa17d9e73c7db7c8714c37ba7f24e66805d5586d739bbb964e5ee164ae88183bbdc095335741754e73d26d5c48ce050581765b89a9da2893b74739aefdd0b
SSDEEP

12288:fpr0l2PeH7j4X3O/eyPGkVlnSLV0szQLeIuibOXKIJQ7ZDosc4Tep5xBMic/+vU7:RrA2Pg4nO/eyuslSL+tO6yQNMLxR/V3u

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1932	svcr.exe

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{2bf41070-b2b1-21d1-b5c1-0305f4055515}	svcr.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{2bf41070-b2b1-21d1-b5c1-0305f4055515}\StubPath = "C:\\windows\\svcr.exe"	svcr.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	svcr.exe

Deletes itself 1 IoCs

pid	Process
1932	svcr.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Wine	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Wine	svcr.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\system = "C:\\Windows\\svcr.exe"	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\system = "C:\\Windows\\svcr.exe"	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svcr.exe	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe
File created	C:\Windows\svcr.exe	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\InternetRegistry	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3d0000003d000000c3040000a2020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IntelliForms	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{5F6675E1-72B9-11ED-B4BC-4A12BD72B3C7} = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376802602"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\PageSetup	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Zoom	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1376	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe
1932	svcr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1932	svcr.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
596	IEXPLORE.EXE
596	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
596	IEXPLORE.EXE
596	IEXPLORE.EXE
596	IEXPLORE.EXE
596	IEXPLORE.EXE
1600	IEXPLORE.EXE
1600	IEXPLORE.EXE
1700	IEXPLORE.EXE
1700	IEXPLORE.EXE
1700	IEXPLORE.EXE
1700	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 1796	1376	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe	27
PID 1376 wrote to memory of 1796	1376	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe	27
PID 1376 wrote to memory of 1796	1376	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe	27
PID 1376 wrote to memory of 1796	1376	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe	27
PID 1796 wrote to memory of 596	1796	IEXPLORE.EXE	28
PID 1796 wrote to memory of 596	1796	IEXPLORE.EXE	28
PID 1796 wrote to memory of 596	1796	IEXPLORE.EXE	28
PID 1796 wrote to memory of 596	1796	IEXPLORE.EXE	28
PID 596 wrote to memory of 1600	596	IEXPLORE.EXE	30
PID 596 wrote to memory of 1600	596	IEXPLORE.EXE	30
PID 596 wrote to memory of 1600	596	IEXPLORE.EXE	30
PID 596 wrote to memory of 1600	596	IEXPLORE.EXE	30
PID 1376 wrote to memory of 1932	1376	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe	31
PID 1376 wrote to memory of 1932	1376	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe	31
PID 1376 wrote to memory of 1932	1376	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe	31
PID 1376 wrote to memory of 1932	1376	8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe	31
PID 1932 wrote to memory of 1556	1932	svcr.exe	32
PID 1932 wrote to memory of 1556	1932	svcr.exe	32
PID 1932 wrote to memory of 1556	1932	svcr.exe	32
PID 1932 wrote to memory of 1556	1932	svcr.exe	32
PID 1556 wrote to memory of 1680	1556	IEXPLORE.EXE	33
PID 1556 wrote to memory of 1680	1556	IEXPLORE.EXE	33
PID 1556 wrote to memory of 1680	1556	IEXPLORE.EXE	33
PID 1556 wrote to memory of 1680	1556	IEXPLORE.EXE	33
PID 596 wrote to memory of 1700	596	IEXPLORE.EXE	34
PID 596 wrote to memory of 1700	596	IEXPLORE.EXE	34
PID 596 wrote to memory of 1700	596	IEXPLORE.EXE	34
PID 596 wrote to memory of 1700	596	IEXPLORE.EXE	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34
PID 1932 wrote to memory of 1700	1932	svcr.exe	34

C:\Users\Admin\AppData\Local\Temp\8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe
"C:\Users\Admin\AppData\Local\Temp\8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe"
1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1796
- - C:\Program Files\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:596
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:596 CREDAT:275457 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:1600
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:596 CREDAT:472067 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:1700
- C:\Windows\svcr.exe
  "C:\Windows\svcr.exe" "C:\Users\Admin\AppData\Local\Temp\8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a.exe"
  2⤵
  - Executes dropped EXE
  - Modifies Installed Components in the registry
  - Checks BIOS information in registry
  - Deletes itself
  - Identifies Wine through registry keys
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1932
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1556
  - - C:\Program Files\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
      4⤵
      PID:1680

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\FMB9MLOB.txt

Filesize
608B

MD5
52f5887b218d3fd0ad614b3a5ed22d43

SHA1
9a9a118218a2c6ffb664a10a1715ea509bdcaecb

SHA256
35d0284d879597fc3c121081e93a8a76b7c5d0f1de6d3e215d199751db6fc72c

SHA512
7cda3d89749899af4f05f7d1b88af8f607feb6da70173c3f6137817981c7fc9b34c3d3ff1e6cc216197cd0fc02fc61ab7880dc83309341f6c4310f99acacdb41

Download Submit
C:\Windows\svcr.exe

Filesize
1.1MB

MD5
9341f7097b0c8f44761b2b2067dcb383

SHA1
a9e2ebd22d10b2ad3856be7967ec2c9d0e7ed55e

SHA256
8dc6a2fe89b1fec7808466a942b820234f09b1c83a864a3a727d46ac47f26f5a

SHA512
a0efa17d9e73c7db7c8714c37ba7f24e66805d5586d739bbb964e5ee164ae88183bbdc095335741754e73d26d5c48ce050581765b89a9da2893b74739aefdd0b

Download Submit
memory/1376-54-0x0000000075831000-0x0000000075833000-memory.dmp

Filesize
8KB

Download
memory/1376-55-0x0000000000400000-0x0000000000528000-memory.dmp

Filesize
1.2MB

Download
memory/1376-56-0x0000000000240000-0x000000000030D000-memory.dmp

Filesize
820KB

Download
memory/1376-57-0x0000000000400000-0x0000000000528000-memory.dmp

Filesize
1.2MB

Download
memory/1376-60-0x0000000000400000-0x0000000000528000-memory.dmp

Filesize
1.2MB

Download
memory/1932-61-0x0000000000400000-0x0000000000528000-memory.dmp

Filesize
1.2MB

Download
memory/1932-64-0x0000000010410000-0x000000001042E000-memory.dmp

Filesize
120KB

Download
memory/1932-71-0x0000000000400000-0x0000000000528000-memory.dmp

Filesize
1.2MB

Download
memory/1932-72-0x0000000000400000-0x0000000000528000-memory.dmp

Filesize
1.2MB

Download