fe674821399a38a4d4f14d6902b66cce677c2c66fb3cd542944d6600dbd14efd

Analysis

max time kernel
146s
max time network
143s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31-12-2023 13:15

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General

Target

378fdab2f8bc37f1b762116925e9b5f1.exe
Size

13KB
MD5

378fdab2f8bc37f1b762116925e9b5f1
SHA1

903e0830443567e68805a82e8f1250cd14e931e9
SHA256

fe674821399a38a4d4f14d6902b66cce677c2c66fb3cd542944d6600dbd14efd
SHA512

c9df43e8e3203e7d4e4090f957de19bf43ccf38bd17808a974ee1017e809793208995b70f507f2f1f96a2790dd8fe6313b9173d6bfa1822bef02ff589915a240
SSDEEP

192:yS4gbgkAN4SJj+bfrJsUwv7E6a5tMeu7Br9ZCspE+TMIr3/bjOg+vtwJr741:yS4uI44aJ+7NaYeLeME/bjw

Score

7^/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/2508-0-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral1/memory/2508-1-0x0000000000400000-0x0000000000408000-memory.dmp	upx

Modifies Internet Explorer settings 1 TTPs 36 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 1057806a6a3fda01	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000002213d23592f6d648a137f9bf65c22cfa0000000002000000000010660000000100002000000012f8d2ec8eab316225ed125d4ca6529732d61853f28214ec923acf9f415c15bc000000000e80000000020000200000004e4af313056c533f633ef5664a9ad7022bb9914f03b17a9eaed8fbc1beb3d84090000000ae5eb0c3bd34edd18ad469d0c406ccfef180fab913541be9704dfa2021f3148d3d091e44bb2f333325ce83f393d6f4b7cd1aac28a3f543e24c0c650c219c59a8447e88d946bd599b5db75dcf869371681e2c6297c4f51faa7fd4282dd94e01ac6942b64ac18b6e56db9c5786c748c119a1ae08b9740a3f5c67111f5813b478951ae753e8902170b42eac95a5e62758604000000079cab0bbb8bfd6b08657ad7c7762a6c706521f92686b0bf0897cbb48981c7a45e071a45d13eb3782734812eb0b8e070d728cce9f370e0580a23baf3318aa6598	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "410574769"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000002213d23592f6d648a137f9bf65c22cfa00000000020000000000106600000001000020000000d88f2773e38d1aef960d2b4f730a5bfe24b50f63b82a0883bc2350dfc9d6001b000000000e80000000020000200000004a461c3971d20f43d134c8e4bf4601ae5070e8ffd04d515b8db28197acd6d1a720000000f56a5a3105d3192c9c38af1beb90b9a0e985bdd610c8462b6b8eae1f383083d2400000003dc0e1bd1714f51843af6c4749fa94b99e290ac5c02eb960a047a4a9d7777bccdc869a719799f2c712cec1d9b7b9803e21ef766024f7199ca290ba0850624139	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{94FE2D51-AB5D-11EE-B383-EED0D7A1BF98} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2796	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
2508	378fdab2f8bc37f1b762116925e9b5f1.exe
2796	iexplore.exe
2796	iexplore.exe
2176	IEXPLORE.EXE
2176	IEXPLORE.EXE
2176	IEXPLORE.EXE
2176	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2796	2508	378fdab2f8bc37f1b762116925e9b5f1.exe	28
PID 2508 wrote to memory of 2796	2508	378fdab2f8bc37f1b762116925e9b5f1.exe	28
PID 2508 wrote to memory of 2796	2508	378fdab2f8bc37f1b762116925e9b5f1.exe	28
PID 2508 wrote to memory of 2796	2508	378fdab2f8bc37f1b762116925e9b5f1.exe	28
PID 2796 wrote to memory of 2176	2796	iexplore.exe	29
PID 2796 wrote to memory of 2176	2796	iexplore.exe	29
PID 2796 wrote to memory of 2176	2796	iexplore.exe	29
PID 2796 wrote to memory of 2176	2796	iexplore.exe	29

C:\Users\Admin\AppData\Local\Temp\378fdab2f8bc37f1b762116925e9b5f1.exe
"C:\Users\Admin\AppData\Local\Temp\378fdab2f8bc37f1b762116925e9b5f1.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" http://ads.eorezo.com/cgi-bin/advert/getads?did=43
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2796
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2796 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:2176

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
c14fe08098f0266f49e98675670b94c7

SHA1
962c929111c8a29fb6795e783b43be3b37c4c43d

SHA256
462eee1cefaa363797d96ff000cd35b9f21b53ef0794e2f0b096e6194a739fde

SHA512
f3b5304b6a64331f11fdca1f25e5d77eddefb19c450f95d6c27e0e1569ca9af7ccb7f16f0ee5acee4775d03678a50885d3abc834ae89488dfed36f704d58b3e4

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
47898cd02c372923a3a0861826f1e0f5

SHA1
6add1eabbde8259e7538c000f2fd01a48bfdd649

SHA256
f9e770ab7ab706dbf8b413483323d23c4fd3a60176a6233deaeb354d47df6f11

SHA512
35165a4e0a26ea374fcb9b0018ff4343047575e635d293b0a9132a6e1ab995b1fef56a026fa5ba53eaacdbcad456ce239378229dcf47517ce177efe3a25c9807

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
2d2562f8e7385945bc404dc7c6c8d9a4

SHA1
a071348a7b34f041df40587553a4ac08a4785874

SHA256
921f44e01ed2deaf73acb2b0c4f92954476fb5a609e87200e6b81398e2ef6820

SHA512
bc89ac4eeb5d8c286b990edee36591cda3739d39b55292f6a6c150c99ab3afa47e68601c5c286539a0a2e58fe024b450c77240ea7f37494dbd50b6564de5d467

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
bb448906b78ead4c0d4809c8b5207426

SHA1
0ace2a9ebef5aa0c7b2f2fcf3db9917a233878e6

SHA256
9f8d4536d50a294e7a8ebfa5df3fe9b0ea3d71734887d89a731f5f59d2a7347f

SHA512
3fc4ada5455272cf641c654f79f18ecd10a22371e4ccf522497ac33e48945a029063efad2e07b52d2687d6aac645cbf8204d8cac9e6faadc187b4c43148a387e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
fd7684dbc99191f4aeb97f307856863d

SHA1
3ac488d68bbda54bc9ee3b90b54aba06b752adbf

SHA256
fbb1c6bc7cefa18d2a2530804660e628a0a9fa8759087cd6852ac71db7990859

SHA512
a44de4f6ffd01b440812f4651051027cd3213ad6051522074566ad5430eb9b2428595808cba3c06439eb2749b2e509f4338dcf9a11a61b46bd295e8cdf2534cf

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabAAC3.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarAAE5.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
memory/2508-0-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/2508-1-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download