a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa

Analysis

max time kernel
145s
max time network
160s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
05/12/2022, 10:00

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Report Analysis Logs

General

Target

a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
Size

477KB
MD5

07516906e428d39bf512ddb6c3a74d65
SHA1

318f172f936c9b11bc060219951053909ac20520
SHA256

a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa
SHA512

ae0d89966fa9242850a9e6ef09a4ff0313f3f0156bcdd6ad6d39ddfa3bbda7e77882d0b7558e4112c3648e02f2695d558d031294a1d4e8c817055d1049393ab2
SSDEEP

6144:cyOBfkBSFNkquurci6T+uBSa83Y4Ma/Bk2MyuBqPCS+GPCXATD6eppMnRPWAN2Iz:iBfkckkz6T+uBLpwPCX+6eppMnRNzGfY

Score

6^/10

Malware Config

Signatures

Enumerates connected drives 3 TTPs 24 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)	\??\S:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\T:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\U:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\A:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\G:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\L:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\M:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\O:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\Y:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\Z:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\E:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\K:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\N:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\P:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\W:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\F:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\H:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\I:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\R:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\V:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\B:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\J:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\Q:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
File opened (read-only)	\??\X:	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\WINDOWS\msew_02q.css	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.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 34 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{1CDBD7D1-77D0-11ED-BB27-6A94EDCEDC7A} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "377362100"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 80d05202dd0bd901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000001e467494897a634ab3fa101fc9c8d29f00000000020000000000106600000001000020000000affdcf3af43d27d77a4a239a615453efb1c759baea3f2ecb5dad656b9f34eac0000000000e8000000002000020000000d47f303627a75cc225ca55ac232cfbf308e825ff1dbb7aa5e96731f40864d8fe200000008778693494143365914fe8a3b0880c2a611d7359b6b0cd788ce07fe70b6e5f1540000000baa7cfb163e8350f71c30027913a077ae4f12e1770ff459d8c55d493b35e9b1e71e54bf42029a67df5ae7e19c9ca79c4de0b64b465ec173cdb112fce23861995	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2036	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
1228	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
2036	iexplore.exe
2036	iexplore.exe
520	IEXPLORE.EXE
520	IEXPLORE.EXE
520	IEXPLORE.EXE
520	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1228 wrote to memory of 2036	1228	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe	27
PID 1228 wrote to memory of 2036	1228	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe	27
PID 1228 wrote to memory of 2036	1228	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe	27
PID 1228 wrote to memory of 2036	1228	a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe	27
PID 2036 wrote to memory of 520	2036	iexplore.exe	29
PID 2036 wrote to memory of 520	2036	iexplore.exe	29
PID 2036 wrote to memory of 520	2036	iexplore.exe	29
PID 2036 wrote to memory of 520	2036	iexplore.exe	29

C:\Users\Admin\AppData\Local\Temp\a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe
"C:\Users\Admin\AppData\Local\Temp\a5fcf1f76a427539103b33859bda936890defc70c9c85710ab6b125858841afa.exe"
1⤵
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" http://www.pekalongan-community.com/
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2036
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2036 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:520

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\21JWRDS2.txt

Filesize
603B

MD5
c80c9f8f47f3823575ecb26aae15605e

SHA1
41c82ea738f5ee7400af036d0591bfbad2f10a14

SHA256
8697d3aff9f0f063f4f73bbe574818ca12acacabcd392ee15b25984c34d58db8

SHA512
b7567606d81c531c14ab25f78186eaabb200ab8497edc952638abd56f8ec74e6e4c3e7fbe3270f872fb9892c8eeaeb9c1021564833c917fc1121e93fd84fb312

Download Submit
memory/1228-56-0x0000000000400000-0x00000000004AC550-memory.dmp

Filesize
689KB

Download
memory/1228-57-0x0000000076401000-0x0000000076403000-memory.dmp

Filesize
8KB

Download
memory/1228-58-0x0000000004200000-0x0000000004CBA000-memory.dmp

Filesize
10.7MB

Download
memory/1228-59-0x0000000003F80000-0x0000000003F90000-memory.dmp

Filesize
64KB

Download
memory/1228-60-0x0000000004B31000-0x000000000507D000-memory.dmp

Filesize
5.3MB

Download
memory/1228-62-0x0000000000400000-0x00000000004AC550-memory.dmp

Filesize
689KB

Download
memory/1228-63-0x0000000003F80000-0x0000000003F90000-memory.dmp

Filesize
64KB

Download