91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac

General

Target

91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe
Size

861KB
MD5

68636da56c83715de2290164bcf756b0
SHA1

5db1c14809b1573a7ee7625db8e8cb23c02f8983
SHA256

91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac
SHA512

a006f38b32e7ad671264f4317c2f7293a78826cce5a937b893dc1466af8be3ae67032a7b89ce144768c1a5a32abe355a5fb7b2f9a96b42f3fcdb3387a121f098
SSDEEP

24576:MRmJkcoQricOIQxiZY1iaC3bqaR5/cT0hO:ZJZoQrbTFZY1iaCNQ

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1376	iexplore.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Txtfty = "C:\\Users\\Admin\\AppData\\Roaming\\Txtfty.exe"	iexplore.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\D:	iexplore.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/364-54-0x0000000000400000-0x00000000004C8000-memory.dmp	autoit_exe
behavioral1/memory/364-71-0x0000000000400000-0x00000000004C8000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 364 set thread context of 1708	364	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	26

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 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "371560950"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{39EC1350-430D-11ED-8B83-6A6CB2F85B9F} = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Zoom	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IntelliForms	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\InternetRegistry	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PageSetup	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1708	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1708	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe
Token: SeDebugPrivilege	1376	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1416	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1416	IEXPLORE.EXE
1416	IEXPLORE.EXE
1232	IEXPLORE.EXE
1232	IEXPLORE.EXE
1232	IEXPLORE.EXE
1232	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 364 wrote to memory of 1708	364	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	26
PID 364 wrote to memory of 1708	364	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	26
PID 364 wrote to memory of 1708	364	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	26
PID 364 wrote to memory of 1708	364	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	26
PID 364 wrote to memory of 1708	364	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	26
PID 364 wrote to memory of 1708	364	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	26
PID 364 wrote to memory of 1708	364	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	26
PID 364 wrote to memory of 1708	364	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	26
PID 364 wrote to memory of 1708	364	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	26
PID 364 wrote to memory of 1708	364	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	26
PID 1708 wrote to memory of 1376	1708	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	27
PID 1708 wrote to memory of 1376	1708	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	27
PID 1708 wrote to memory of 1376	1708	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	27
PID 1708 wrote to memory of 1376	1708	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	27
PID 1376 wrote to memory of 1416	1376	iexplore.exe	28
PID 1376 wrote to memory of 1416	1376	iexplore.exe	28
PID 1376 wrote to memory of 1416	1376	iexplore.exe	28
PID 1376 wrote to memory of 1416	1376	iexplore.exe	28
PID 1708 wrote to memory of 1376	1708	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	27
PID 1708 wrote to memory of 1376	1708	91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe	27
PID 1416 wrote to memory of 1232	1416	IEXPLORE.EXE	30
PID 1416 wrote to memory of 1232	1416	IEXPLORE.EXE	30
PID 1416 wrote to memory of 1232	1416	IEXPLORE.EXE	30
PID 1416 wrote to memory of 1232	1416	IEXPLORE.EXE	30

C:\Users\Admin\AppData\Local\Temp\91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe
"C:\Users\Admin\AppData\Local\Temp\91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:364
- C:\Users\Admin\AppData\Local\Temp\91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe
  "C:\Users\Admin\AppData\Local\Temp\91c414d0f1a677d6d3bd7d890300720a57404a0c943ed99562f93ae7ac9098ac.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1708
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Deletes itself
    - Adds Run key to start application
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1376
  - - C:\Program Files\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1416
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1416 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1232

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\H036M4TI.txt

Filesize
597B

MD5
92634ead356e59fa7024658aae62a278

SHA1
be98565ed97632215036846aa80b7a35ef89c299

SHA256
c9cf2a1b6e844fdb766567153754a5aec7abb9de6e4925c0914b1b9c9cbb3860

SHA512
a2c4019701504217b53199b464e160f010ec9a4951b623d8418ae5519897d180e616140be507804700e915134a6fe715aab70722717367d8f76c6ac88aef1a53

Download Submit
memory/364-54-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/364-55-0x0000000076681000-0x0000000076683000-memory.dmp

Filesize
8KB

Download
memory/364-71-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/364-61-0x00000000026D0000-0x0000000002798000-memory.dmp

Filesize
800KB

Download
memory/1708-66-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1708-62-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1708-64-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1708-59-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1708-70-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1708-57-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1708-72-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1708-75-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1708-76-0x00000000002B0000-0x00000000002FE000-memory.dmp

Filesize
312KB

Download
memory/1708-56-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads