9d93a71a00351322c77e85e297cf58155f2049ad42ef475029cfdb7b913560c9

Resubmissions

08/03/2023, 21:50

230308-1pyvasgc3t 8

08/03/2023, 21:48

230308-1n5apahc88 1

08/03/2023, 21:45

230308-1mhejagc2w 1

08/03/2023, 12:51

230308-p3h58ada29 3

Analysis

max time kernel
210s
max time network
210s
platform
windows10-2004_x64
resource
win10v2004-20230221-es
resource tags

arch:x64arch:x86image:win10v2004-20230221-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
08/03/2023, 21:50

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Report Analysis Logs

General

Target

stage4_after_autoit.dll
Size

27.9MB
MD5

cf6c8c2264f48739230e812d9c0a52c0
SHA1

eec61aa4a98726c0634a16aaa41e76ef1d87a42f
SHA256

9d93a71a00351322c77e85e297cf58155f2049ad42ef475029cfdb7b913560c9
SHA512

ab99d12d41adecbf24e340c39f7208fd8c4f97220244dd700ef109d2809ff27dca28eee1d8b6eeeaf0422fdc158dba2f45a0e13008a2edc31c4d2ddf6f2cc1a0
SSDEEP

98304:l62O/te/kRbtH8Jqr9N4eExVrYHYwBtBjZADA0Pjq:w/g/i3rCV6btBjODFPW

Score

8^/10

spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
64	1480	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
748	536	WerFault.exe	87

Checks processor information in registry 2 TTPs 6 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Enumerates system info in registry 2 TTPs 12 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	rundll32.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion	rundll32.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion	rundll32.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 35 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31019536"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\es-ES = "es-ES.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3343891421"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{F26300C7-BE03-11ED-8228-E232BE58CFEE} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3343891421"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "385080943"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000051d6db365ce0f843a8e6cfaf226c4d2b0000000002000000000010660000000100002000000020f3ffb3aa519867e0ca70ba911f7d0d5800eade00409e0b6a7a95d201eb42d8000000000e80000000020000200000001537d672482bf49cf35ac57a502ed2577bee5a4dacc2300e6f3e49adc15a808b2000000094d915b6b12ac727718dd3155f6dd5febc91df01cc8edc9911db23246e97bce640000000ee8f392e13227db2ddea11d0fede30fbf0675d3cda0d8b9fcd54192664e305b4f136456af4f2199eeaef3e099d96f128bd3c0142e0ecfee400f803014d31124b	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31019536"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000051d6db365ce0f843a8e6cfaf226c4d2b00000000020000000000106600000001000020000000874804fd6264f1e8e41d6b7334a5d7937539630940ff6748b68aeea1988cfca2000000000e80000000020000200000004ec457d5aea78b5536d332fd159252796930e41d903886698c7786017b9320d620000000ebed492b95fd1c63431700d1b2a36ffb73d71914199191eef92267f2142c30c740000000e599507ac9a7c93e3e7de0b61a00b6e6d56477f6b320b3cd9e5df601dd6e5d75944e0133e3bbd28135bbcefd592e667d62ce65b47d9ab1030225285df8c12782	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 409b13c91052d901	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = c09034c91052d901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2580	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2580	iexplore.exe
2580	iexplore.exe
4800	IEXPLORE.EXE
4800	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 536	2380	rundll32.exe	87
PID 2380 wrote to memory of 536	2380	rundll32.exe	87
PID 2380 wrote to memory of 536	2380	rundll32.exe	87
PID 2508 wrote to memory of 4536	2508	cmd.exe	113
PID 2508 wrote to memory of 4536	2508	cmd.exe	113
PID 4536 wrote to memory of 1480	4536	rundll32.exe	114
PID 4536 wrote to memory of 1480	4536	rundll32.exe	114
PID 4536 wrote to memory of 1480	4536	rundll32.exe	114
PID 2580 wrote to memory of 4800	2580	iexplore.exe	117
PID 2580 wrote to memory of 4800	2580	iexplore.exe	117
PID 2580 wrote to memory of 4800	2580	iexplore.exe	117
PID 2508 wrote to memory of 3500	2508	cmd.exe	119
PID 2508 wrote to memory of 3500	2508	cmd.exe	119
PID 2508 wrote to memory of 380	2508	cmd.exe	120
PID 2508 wrote to memory of 380	2508	cmd.exe	120
PID 380 wrote to memory of 1964	380	rundll32.exe	121
PID 380 wrote to memory of 1964	380	rundll32.exe	121
PID 380 wrote to memory of 1964	380	rundll32.exe	121

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\stage4_after_autoit.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\stage4_after_autoit.dll,#1
  2⤵
  - Checks processor information in registry
  - Enumerates system info in registry
  PID:536
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 536 -s 1076
    3⤵
    - Program crash
    PID:748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 536 -ip 536
1⤵
PID:872

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4872

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Windows\system32\rundll32.exe
  rundll32 stage4_after_autoit.dll,A040822_1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4536
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32 stage4_after_autoit.dll,A040822_1
    3⤵
    - Blocklisted process makes network request
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:1480
- C:\Windows\system32\rundll32.exe
  rundll32
  2⤵
  PID:3500
- C:\windows\system32\rundll32.exe
  C:\windows\system32\rundll32.exe stage4_after_autoit.dll,A040822_1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:380
- - C:\Windows\SysWOW64\rundll32.exe
    C:\windows\system32\rundll32.exe stage4_after_autoit.dll,A040822_1
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:1964

C:\Program Files (x86)\Internet Explorer\ielowutil.exe
"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
1⤵
PID:5020

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2580
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2580 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:4800

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver1812.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\RUOQG7D6\suggestions[1].es-ES

Filesize
18KB

MD5
e2749896090665aeb9b29bce1a591a75

SHA1
59e05283e04c6c0252d2b75d5141ba62d73e9df9

SHA256
d428ea8ca335c7cccf1e1564554d81b52fb5a1f20617aa99136cacf73354e0b7

SHA512
c750e9ccb30c45e2c4844df384ee9b02b81aa4c8e576197c0811910a63376a7d60e68f964dad858ff0e46a8fd0952ddaf19c8f79f3fd05cefd7dbf2c043d52c5

Download Submit
memory/536-135-0x00000000027A0000-0x0000000004396000-memory.dmp

Filesize
28.0MB

Download
memory/536-133-0x00000000027A0000-0x0000000004396000-memory.dmp

Filesize
28.0MB

Download
memory/1480-162-0x0000000001FA0000-0x0000000003B96000-memory.dmp

Filesize
28.0MB

Download
memory/1480-164-0x0000000001FA0000-0x0000000003B96000-memory.dmp

Filesize
28.0MB

Download
memory/1480-145-0x0000000001FA0000-0x0000000003B96000-memory.dmp

Filesize
28.0MB

Download
memory/1480-142-0x0000000001FA0000-0x0000000003B96000-memory.dmp

Filesize
28.0MB

Download
memory/1480-143-0x0000000001FA0000-0x0000000003B96000-memory.dmp

Filesize
28.0MB

Download
memory/1480-177-0x0000000001FA0000-0x0000000003B96000-memory.dmp

Filesize
28.0MB

Download
memory/1480-160-0x0000000001FA0000-0x0000000003B96000-memory.dmp

Filesize
28.0MB

Download
memory/1480-136-0x0000000001FA0000-0x0000000003B96000-memory.dmp

Filesize
28.0MB

Download
memory/1480-138-0x00000000006F0000-0x00000000006F1000-memory.dmp

Filesize
4KB

Download
memory/1964-155-0x0000000002260000-0x0000000003E56000-memory.dmp

Filesize
28.0MB

Download
memory/1964-163-0x0000000002260000-0x0000000003E56000-memory.dmp

Filesize
28.0MB

Download
memory/1964-165-0x0000000002260000-0x0000000003E56000-memory.dmp

Filesize
28.0MB

Download
memory/1964-161-0x0000000002260000-0x0000000003E56000-memory.dmp

Filesize
28.0MB

Download
memory/1964-159-0x0000000000770000-0x0000000000771000-memory.dmp

Filesize
4KB

Download
memory/1964-178-0x0000000002260000-0x0000000003E56000-memory.dmp

Filesize
28.0MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads