a6cf37a44fcdb30220b0d1c249cec909f1fcddf15956c6cc1448f456fb13d243

Analysis

max time kernel
122s
max time network
173s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
30/10/2022, 15:44

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General

Target

a6cf37a44fcdb30220b0d1c249cec909f1fcddf15956c6cc1448f456fb13d243.exe
Size

20KB
MD5

8236b1cc20fde4c5065381272f29c180
SHA1

b0c9e25cfd09830d7aba279885f63b9ae6b0f97a
SHA256

a6cf37a44fcdb30220b0d1c249cec909f1fcddf15956c6cc1448f456fb13d243
SHA512

52c4e8840944941d3d72b42d729d7a8aaac8a9372c48162f994ab5c70775024f689299938d320576f849e13c17c9762cfa3d670130a92bdcfdf6dabe7529246b
SSDEEP

384:rUeMBcTAcl810UugcosSe6XiUdNLLLLLLLLLLL9gbcRv1qAnYSQ:rFMCTAc+qlF7QiUdNLLLLLLLLLLL0AYv

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/748-55-0x0000000000400000-0x00000000007E0000-memory.dmp	upx
behavioral1/memory/748-56-0x0000000000400000-0x00000000007E0000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Control Panel\International\Geo\Nation	a6cf37a44fcdb30220b0d1c249cec909f1fcddf15956c6cc1448f456fb13d243.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\dparams.txt	a6cf37a44fcdb30220b0d1c249cec909f1fcddf15956c6cc1448f456fb13d243.exe

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\BrowserEmulation\LowMic	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\LowRegistry\DontShowMeThisDialogAgain	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\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\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000062e6ef0d45f4454ab79548c962d74cdf000000000200000000001066000000010000200000003aae35b484b9157e13001f693bcac8434201c8c63fbbe4847379d0009d553fe5000000000e8000000002000020000000f57dd5e15f982610bcf773b6483e04caccd3a9521e8ec97fc7a3b460f8dc98c3200000002b88392c143d28f2bfc8a2252d2071ecb612e7ab51b60bbc8462fd07492c9fe440000000e15129fade9f32ad0ef9ad605d148f135e08f4673987ea84089a21dae12c7cf579a0f850a7467b54d2a8ca85661afe52b9a12ffd27b875bcadce741956205a7c	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = a0bc9ea1ffecd801	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{CB206061-58F2-11ED-8716-EAF6071D98F9} = "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
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\IETld\LowMic	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\Toolbar\WebBrowser	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	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\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	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\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	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 (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\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "373968524"	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\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar	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\Recovery\PendingRecovery	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1756	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1756	iexplore.exe
1756	iexplore.exe
320	IEXPLORE.EXE
320	IEXPLORE.EXE
320	IEXPLORE.EXE
320	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 1756	748	a6cf37a44fcdb30220b0d1c249cec909f1fcddf15956c6cc1448f456fb13d243.exe	30
PID 748 wrote to memory of 1756	748	a6cf37a44fcdb30220b0d1c249cec909f1fcddf15956c6cc1448f456fb13d243.exe	30
PID 748 wrote to memory of 1756	748	a6cf37a44fcdb30220b0d1c249cec909f1fcddf15956c6cc1448f456fb13d243.exe	30
PID 748 wrote to memory of 1756	748	a6cf37a44fcdb30220b0d1c249cec909f1fcddf15956c6cc1448f456fb13d243.exe	30
PID 1756 wrote to memory of 320	1756	iexplore.exe	31
PID 1756 wrote to memory of 320	1756	iexplore.exe	31
PID 1756 wrote to memory of 320	1756	iexplore.exe	31
PID 1756 wrote to memory of 320	1756	iexplore.exe	31

C:\Users\Admin\AppData\Local\Temp\a6cf37a44fcdb30220b0d1c249cec909f1fcddf15956c6cc1448f456fb13d243.exe
"C:\Users\Admin\AppData\Local\Temp\a6cf37a44fcdb30220b0d1c249cec909f1fcddf15956c6cc1448f456fb13d243.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:748
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" http://www.redirectingtocontent.com/go.php?siteid=37&country=USA
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1756
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1756 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:320

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\695EQN8P.txt

Filesize
608B

MD5
d6843e8b1c108df80f6bd843f9ac96b0

SHA1
9b8f95d8bf2fa36c01e664824d68ad71329f691f

SHA256
f9930a655851d568f268735a791fd6de119020d2b6b0ce9f603ea2865d0a71de

SHA512
1630823d00f3b39dfee44b16ddbc7b600e6023caae7e32303e23f57ba65ab82be593ab3b6249b4014a841cb0cdbc07c560dff0b88c11da1ec0bd861391238f7c

Download Submit
memory/748-54-0x0000000075B11000-0x0000000075B13000-memory.dmp

Filesize
8KB

Download
memory/748-55-0x0000000000400000-0x00000000007E0000-memory.dmp

Filesize
3.9MB

Download
memory/748-56-0x0000000000400000-0x00000000007E0000-memory.dmp

Filesize
3.9MB

Download