a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad

Analysis

max time kernel
134s
max time network
153s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29-10-2022 22:11

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General

Target

a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe
Size

668KB
MD5

84ae63f85c75ceedb5e10acd1cdbb32d
SHA1

310cfaa0c80efa7128dabe7744be50df4522eb57
SHA256

a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad
SHA512

a0f3bd2f3ad92255fbe16386b69f4b25fbfa69282fc2ef122900bcf7c27006b23af99a4d9de39148fb4afc7bd2f1ee211c0a3aac567d47706a667f7bc9abdfdc
SSDEEP

12288:/ArC/wrr9nkDpf+QsDJGhGszVuWSXLRmseOara:/Akwf9ekQsEgssLcs

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1872	process32.exe

Loads dropped DLL 2 IoCs

pid	Process
1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe
1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\HdwcdejWpp = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tempfile.exe\""	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1824 set thread context of 1872	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe	27

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
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\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	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\FileNames	iexplore.exe
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\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	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\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	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
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "373881241"	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
Set value (data)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000062e6ef0d45f4454ab79548c962d74cdf00000000020000000000106600000001000020000000098a9376206f3ddd1e9d1abfefaeee356e8f23ea887754697bf01a632ad7f4df000000000e800000000200002000000056ebb932cde791345c0af049c19f05cdf76812a8e9cf0992ed611a5065f93ed720000000e060871dad8114b79063b6d5cbf8fad9959d5910647f3d3fc09bfcc5f8b7b2704000000058b246fd85715f0021fc35927040fb8a4c81a927536491aa5cf9396eddb182267e72e46340059e0c4e5ec614ae72fb8d81a8c05ca78acff65976b7164b01eef3	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
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\PageSetup	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\IETld\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\{96F3FA71-5827-11ED-A645-626C2AE6DC56} = "0"	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
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	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\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 606f9a7c34ecd801	iexplore.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1964	NOTEPAD.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1716	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1716	iexplore.exe
1716	iexplore.exe
1548	IEXPLORE.EXE
1548	IEXPLORE.EXE
1548	IEXPLORE.EXE
1548	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1824 wrote to memory of 1872	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe	27
PID 1824 wrote to memory of 1872	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe	27
PID 1824 wrote to memory of 1872	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe	27
PID 1824 wrote to memory of 1872	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe	27
PID 1824 wrote to memory of 1872	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe	27
PID 1824 wrote to memory of 1872	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe	27
PID 1824 wrote to memory of 1872	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe	27
PID 1824 wrote to memory of 1872	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe	27
PID 1824 wrote to memory of 1872	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe	27
PID 1824 wrote to memory of 1964	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe	28
PID 1824 wrote to memory of 1964	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe	28
PID 1824 wrote to memory of 1964	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe	28
PID 1824 wrote to memory of 1964	1824	a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe	28
PID 1872 wrote to memory of 1716	1872	process32.exe	29
PID 1872 wrote to memory of 1716	1872	process32.exe	29
PID 1872 wrote to memory of 1716	1872	process32.exe	29
PID 1872 wrote to memory of 1716	1872	process32.exe	29
PID 1716 wrote to memory of 1548	1716	iexplore.exe	31
PID 1716 wrote to memory of 1548	1716	iexplore.exe	31
PID 1716 wrote to memory of 1548	1716	iexplore.exe	31
PID 1716 wrote to memory of 1548	1716	iexplore.exe	31

C:\Users\Admin\AppData\Local\Temp\a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe
"C:\Users\Admin\AppData\Local\Temp\a9f43ef0b06830d6dc965d3cdb1f0ffb53e304676aadc01cf658c7c3e63502ad.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1824
- C:\Users\Admin\AppData\Local\Temp\process32.exe
  C:\Users\Admin\AppData\Local\Temp\\process32.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1872
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" http://go.microsoft.com/fwlink/?prd=11324&pver=4.5&sbp=AppLaunch2&plcid=0x409&o1=SHIM_NOVERSION_FOUND&version=(null)&processName=process32.exe&platform=0009&osver=5&isServer=0&shimver=4.0.30319.0
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1716
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1716 CREDAT:275457 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:1548
- C:\Windows\SysWOW64\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\Dani.txt
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:1964

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\process32.exe

Filesize
5KB

MD5
d2ed8fa3208e702b7d61728af768eed1

SHA1
54094aa272cb866a46c2ca5b56f4a094e0f48ffb

SHA256
9236208e312b2f47a0ef40e59fc0f364fc8e401717e1e46555c26bec8ab3de1f

SHA512
42442dc0b98f2abaea0c6516602d80df8a2a680278ecdc2b96fe5ce44685f7442347fd4ad13d9d99e0330cf0be7c0e9bbf22bd78c0173066221e430203c76313

Download Submit
C:\Users\Admin\AppData\Local\Temp\process32.exe

Filesize
5KB

MD5
d2ed8fa3208e702b7d61728af768eed1

SHA1
54094aa272cb866a46c2ca5b56f4a094e0f48ffb

SHA256
9236208e312b2f47a0ef40e59fc0f364fc8e401717e1e46555c26bec8ab3de1f

SHA512
42442dc0b98f2abaea0c6516602d80df8a2a680278ecdc2b96fe5ce44685f7442347fd4ad13d9d99e0330cf0be7c0e9bbf22bd78c0173066221e430203c76313

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\YBJNM4MX.txt

Filesize
608B

MD5
504007e0c21582f0511ce27608a396fc

SHA1
772fd56039332f5aff0228ec2b1e601d136c5e7e

SHA256
297353caa1e9bb5853f4835f5916a171d16face6846fc8d886fd85f926f3b4bb

SHA512
31680b5b9fb8989bc07849eaa2417bddc772b1efc036c4597798e75f1c7331e88a5297a09389adccf8db2a9374da39943ffd99b46777c8d74e594bf8bd3a3046

Download Submit
\Users\Admin\AppData\Local\Temp\process32.exe

Filesize
5KB

MD5
d2ed8fa3208e702b7d61728af768eed1

SHA1
54094aa272cb866a46c2ca5b56f4a094e0f48ffb

SHA256
9236208e312b2f47a0ef40e59fc0f364fc8e401717e1e46555c26bec8ab3de1f

SHA512
42442dc0b98f2abaea0c6516602d80df8a2a680278ecdc2b96fe5ce44685f7442347fd4ad13d9d99e0330cf0be7c0e9bbf22bd78c0173066221e430203c76313

Download Submit
\Users\Admin\AppData\Local\Temp\process32.exe

Filesize
5KB

MD5
d2ed8fa3208e702b7d61728af768eed1

SHA1
54094aa272cb866a46c2ca5b56f4a094e0f48ffb

SHA256
9236208e312b2f47a0ef40e59fc0f364fc8e401717e1e46555c26bec8ab3de1f

SHA512
42442dc0b98f2abaea0c6516602d80df8a2a680278ecdc2b96fe5ce44685f7442347fd4ad13d9d99e0330cf0be7c0e9bbf22bd78c0173066221e430203c76313

Download Submit
memory/1824-54-0x0000000075571000-0x0000000075573000-memory.dmp

Filesize
8KB

Download
memory/1824-72-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/1824-69-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/1872-58-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1872-66-0x0000000000402000-0x0000000000471000-memory.dmp

Filesize
444KB

Download
memory/1872-67-0x0000000000402000-0x0000000000471000-memory.dmp

Filesize
444KB

Download
memory/1872-62-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1872-61-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1872-60-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1872-57-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads