Analysis
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max time kernel
98s -
max time network
140s -
platform
windows7_x64 -
resource
win7-20220715-en -
resource tags
arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system -
submitted
31/07/2022, 13:46
Static task
static1
Behavioral task
behavioral1
Sample
4a9f6c4b7a5c0716912b22366f2b84ae.exe
Resource
win7-20220715-en
General
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Target
4a9f6c4b7a5c0716912b22366f2b84ae.exe
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Size
317KB
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MD5
4a9f6c4b7a5c0716912b22366f2b84ae
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SHA1
c89d3f01152d9c593583545403492d958210831e
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SHA256
4b8067eeb1ff123514e59e09404686f72e9587b723814dd19efdecef767e848a
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SHA512
3d318bec41b833930577857e3d7ae3725c3560f4bb9692bb8a448ab1324f7f0ccc28d1ccbe7b9af7149caffc14efcac63d3a43893b6210e8f878e903a16d6085
Malware Config
Extracted
arkei
Default
Signatures
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Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 2036 upc.0.exe 1364 upc.0.exe -
Loads dropped DLL 7 IoCs
pid Process 912 4a9f6c4b7a5c0716912b22366f2b84ae.exe 912 4a9f6c4b7a5c0716912b22366f2b84ae.exe 912 4a9f6c4b7a5c0716912b22366f2b84ae.exe 912 4a9f6c4b7a5c0716912b22366f2b84ae.exe 2036 upc.0.exe 1364 upc.0.exe 1364 upc.0.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2036 set thread context of 1364 2036 upc.0.exe 31 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 upc.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString upc.0.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 1420 timeout.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "366040143" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c00000000000000010000000083ffff0083ffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000e528c10875d4b347a30c038b2e32007f00000000020000000000106600000001000020000000c1ff4717ca72f6de80aae2572150fd02273037fae45438ac420f8bd21d559470000000000e80000000020000200000001dde8eb55356e7fcd07454a5374755dedf99bfad4a504942e59204a7f3778b7220000000613bae0d1cb3d3a8e7c616800bfb1de5376a73836de7d9cd47e99577f4d3d3ac4000000029a73cdf826d03ecee52e2bbe36f0a56972bea75b266a963f771c7d86b41f8d3d21af0ca5b9a245de6f8f38bd8e60eda0d5f92363c81d4bd7741c1a25ee5f42c iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{21874681-10D7-11ED-B6E0-66578E127779} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 906d12fbe3a4d801 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1988 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 1988 iexplore.exe 1988 iexplore.exe 1776 IEXPLORE.EXE 1776 IEXPLORE.EXE 1776 IEXPLORE.EXE 1776 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 31 IoCs
description pid Process procid_target PID 912 wrote to memory of 2036 912 4a9f6c4b7a5c0716912b22366f2b84ae.exe 27 PID 912 wrote to memory of 2036 912 4a9f6c4b7a5c0716912b22366f2b84ae.exe 27 PID 912 wrote to memory of 2036 912 4a9f6c4b7a5c0716912b22366f2b84ae.exe 27 PID 912 wrote to memory of 2036 912 4a9f6c4b7a5c0716912b22366f2b84ae.exe 27 PID 912 wrote to memory of 1988 912 4a9f6c4b7a5c0716912b22366f2b84ae.exe 28 PID 912 wrote to memory of 1988 912 4a9f6c4b7a5c0716912b22366f2b84ae.exe 28 PID 912 wrote to memory of 1988 912 4a9f6c4b7a5c0716912b22366f2b84ae.exe 28 PID 912 wrote to memory of 1988 912 4a9f6c4b7a5c0716912b22366f2b84ae.exe 28 PID 1988 wrote to memory of 1776 1988 iexplore.exe 30 PID 1988 wrote to memory of 1776 1988 iexplore.exe 30 PID 1988 wrote to memory of 1776 1988 iexplore.exe 30 PID 1988 wrote to memory of 1776 1988 iexplore.exe 30 PID 2036 wrote to memory of 1364 2036 upc.0.exe 31 PID 2036 wrote to memory of 1364 2036 upc.0.exe 31 PID 2036 wrote to memory of 1364 2036 upc.0.exe 31 PID 2036 wrote to memory of 1364 2036 upc.0.exe 31 PID 2036 wrote to memory of 1364 2036 upc.0.exe 31 PID 2036 wrote to memory of 1364 2036 upc.0.exe 31 PID 2036 wrote to memory of 1364 2036 upc.0.exe 31 PID 2036 wrote to memory of 1364 2036 upc.0.exe 31 PID 2036 wrote to memory of 1364 2036 upc.0.exe 31 PID 2036 wrote to memory of 1364 2036 upc.0.exe 31 PID 2036 wrote to memory of 1364 2036 upc.0.exe 31 PID 1364 wrote to memory of 980 1364 upc.0.exe 33 PID 1364 wrote to memory of 980 1364 upc.0.exe 33 PID 1364 wrote to memory of 980 1364 upc.0.exe 33 PID 1364 wrote to memory of 980 1364 upc.0.exe 33 PID 980 wrote to memory of 1420 980 cmd.exe 35 PID 980 wrote to memory of 1420 980 cmd.exe 35 PID 980 wrote to memory of 1420 980 cmd.exe 35 PID 980 wrote to memory of 1420 980 cmd.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\4a9f6c4b7a5c0716912b22366f2b84ae.exe"C:\Users\Admin\AppData\Local\Temp\4a9f6c4b7a5c0716912b22366f2b84ae.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:912 -
C:\Users\Admin\AppData\Local\Temp\upc.0.exe"C:\Users\Admin\AppData\Local\Temp\upc.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2036 -
C:\Users\Admin\AppData\Local\Temp\upc.0.exe"C:\Users\Admin\AppData\Local\Temp\upc.0.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1364 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\upc.0.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:980 -
C:\Windows\SysWOW64\timeout.exetimeout /t 55⤵
- Delays execution with timeout.exe
PID:1420
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe" https://yip.su/2N19t72⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1988 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1988 CREDAT:275457 /prefetch:23⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1776
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
364KB
MD5a5a77a06940cb5c8933934b8c9e4ac27
SHA1a4d0bebefcbef7b718acd9f2e69a9b7767213a51
SHA2567626e47624b6d66f33395c1c0febb9d8f2c8eb9197ad4eda6c61f86f8660b7b8
SHA512dcaaabc990fd6f971810887a27cd7204bf5cc3cd16e7f4ac0712e41a277051980a079f4b9ea181d1d4509aa56b6b74d454ad2877b50e67029080adb79e7a5aad
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Filesize
364KB
MD5a5a77a06940cb5c8933934b8c9e4ac27
SHA1a4d0bebefcbef7b718acd9f2e69a9b7767213a51
SHA2567626e47624b6d66f33395c1c0febb9d8f2c8eb9197ad4eda6c61f86f8660b7b8
SHA512dcaaabc990fd6f971810887a27cd7204bf5cc3cd16e7f4ac0712e41a277051980a079f4b9ea181d1d4509aa56b6b74d454ad2877b50e67029080adb79e7a5aad
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Filesize
364KB
MD5a5a77a06940cb5c8933934b8c9e4ac27
SHA1a4d0bebefcbef7b718acd9f2e69a9b7767213a51
SHA2567626e47624b6d66f33395c1c0febb9d8f2c8eb9197ad4eda6c61f86f8660b7b8
SHA512dcaaabc990fd6f971810887a27cd7204bf5cc3cd16e7f4ac0712e41a277051980a079f4b9ea181d1d4509aa56b6b74d454ad2877b50e67029080adb79e7a5aad
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Filesize
600B
MD583abe0ad619993fb13285b4c0a2f6674
SHA19c5e40b57d6dc45b3f538281b046c0bb5c906aca
SHA256efa66241c435ba6fa8e19a555bbf127742733e0615bc22bb40886175f7509200
SHA5124cb9fb3989bdad02a75ba4f1fc8035ab016b4e232cacf041252ea701549dd9522c9102b6b5241afc19bf5f58c1b25076dbf875d9a30fe66d7b8c48c984c43547
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Filesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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Filesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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Filesize
364KB
MD5a5a77a06940cb5c8933934b8c9e4ac27
SHA1a4d0bebefcbef7b718acd9f2e69a9b7767213a51
SHA2567626e47624b6d66f33395c1c0febb9d8f2c8eb9197ad4eda6c61f86f8660b7b8
SHA512dcaaabc990fd6f971810887a27cd7204bf5cc3cd16e7f4ac0712e41a277051980a079f4b9ea181d1d4509aa56b6b74d454ad2877b50e67029080adb79e7a5aad
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Filesize
364KB
MD5a5a77a06940cb5c8933934b8c9e4ac27
SHA1a4d0bebefcbef7b718acd9f2e69a9b7767213a51
SHA2567626e47624b6d66f33395c1c0febb9d8f2c8eb9197ad4eda6c61f86f8660b7b8
SHA512dcaaabc990fd6f971810887a27cd7204bf5cc3cd16e7f4ac0712e41a277051980a079f4b9ea181d1d4509aa56b6b74d454ad2877b50e67029080adb79e7a5aad
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Filesize
364KB
MD5a5a77a06940cb5c8933934b8c9e4ac27
SHA1a4d0bebefcbef7b718acd9f2e69a9b7767213a51
SHA2567626e47624b6d66f33395c1c0febb9d8f2c8eb9197ad4eda6c61f86f8660b7b8
SHA512dcaaabc990fd6f971810887a27cd7204bf5cc3cd16e7f4ac0712e41a277051980a079f4b9ea181d1d4509aa56b6b74d454ad2877b50e67029080adb79e7a5aad
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Filesize
364KB
MD5a5a77a06940cb5c8933934b8c9e4ac27
SHA1a4d0bebefcbef7b718acd9f2e69a9b7767213a51
SHA2567626e47624b6d66f33395c1c0febb9d8f2c8eb9197ad4eda6c61f86f8660b7b8
SHA512dcaaabc990fd6f971810887a27cd7204bf5cc3cd16e7f4ac0712e41a277051980a079f4b9ea181d1d4509aa56b6b74d454ad2877b50e67029080adb79e7a5aad
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Filesize
364KB
MD5a5a77a06940cb5c8933934b8c9e4ac27
SHA1a4d0bebefcbef7b718acd9f2e69a9b7767213a51
SHA2567626e47624b6d66f33395c1c0febb9d8f2c8eb9197ad4eda6c61f86f8660b7b8
SHA512dcaaabc990fd6f971810887a27cd7204bf5cc3cd16e7f4ac0712e41a277051980a079f4b9ea181d1d4509aa56b6b74d454ad2877b50e67029080adb79e7a5aad