Analysis
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max time kernel
100s -
max time network
11s -
platform
windows7_x64 -
resource
win7 -
submitted
06-09-2020 16:58
Static task
static1
Behavioral task
behavioral1
Sample
Sample_5e63fe410b2e1300169afd83.bin.exe
Resource
win7
Behavioral task
behavioral2
Sample
Sample_5e63fe410b2e1300169afd83.bin.exe
Resource
win10v200722
General
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Target
Sample_5e63fe410b2e1300169afd83.bin.exe
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Size
94KB
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MD5
993b73d6490bc5a7e23e02210b317247
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SHA1
6fd314af34409e945504e166eb8cd88127c1070e
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SHA256
de04d2402154f676f757cf1380671f396f3fc9f7dbb683d9461edd2718c4e09d
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SHA512
417f55a066896695ce1b8d998767f706005d3d6f1792f2b86261a235034a6c3bb1deae6920857fbc710d22b833479b2cbeafd92735381f1cc357adcc8a74c55d
Malware Config
Extracted
C:\Program Files (x86)\Common Files\Adobe AIR\7F017-Readme.txt
mailto_hamlampampom
Extracted
C:\Users\Admin\Desktop\7F017-Readme.txt
mailto_hamlampampom
Signatures
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MailTo (Hamlampampom Variant)
Ransomware family discovered in late 2019 with variants named based on contact emails.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies extensions of user files 1 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
explorer.exedescription ioc process File opened for modification C:\Users\Admin\Pictures\UpdateSave.tiff explorer.exe -
Deletes itself 1 IoCs
Processes:
explorer.exepid process 1084 explorer.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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
explorer.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7f017dbb = "C:\\Program Files (x86)\\7f017dbb\\7f017dbb.exe" explorer.exe -
Modifies service 2 TTPs 5 IoCs
Processes:
vssvc.exedescription ioc process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5} vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer vssvc.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
Sample_5e63fe410b2e1300169afd83.bin.exeexplorer.exedescription pid process target process PID 1324 set thread context of 1084 1324 Sample_5e63fe410b2e1300169afd83.bin.exe explorer.exe PID 1084 set thread context of 1136 1084 explorer.exe explorer.exe -
Drops file in Program Files directory 7502 IoCs
Processes:
explorer.exedescription ioc process File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\SO00221_.WMF explorer.exe File opened for modification C:\Program Files\Microsoft Office\MEDIA\OFFICE14\AUTOSHAP\BD18226_.WMF explorer.exe File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\AG00167_.GIF explorer.exe File opened for modification C:\Program Files\Microsoft Office\Office14\PUBWIZ\BANNER.DPV explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\logging.properties explorer.exe File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\PE00014_.WMF explorer.exe File opened for modification C:\Program Files (x86)\Google\Chrome\Application\83.0.4103.106\chrome.dll.sig explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-openide-nodes.jar explorer.exe File opened for modification C:\Program Files\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\Swirl\background.gif explorer.exe File opened for modification C:\Program Files\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\SoftBlue\tab_off.gif explorer.exe File created C:\Program Files\Java\jre7\lib\zi\America\Argentina\7F017-Readme.txt explorer.exe File opened for modification C:\Program Files\Microsoft Office\Office14\BORDERS\MSART9.BDR explorer.exe File created C:\Program Files\VideoLAN\VLC\hrtfs\7F017-Readme.txt explorer.exe File opened for modification C:\Program Files\Microsoft Office\Office14\1033\CollectSignatures_Sign.xsn explorer.exe File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\AN04196_.WMF explorer.exe File opened for modification C:\Program Files\Microsoft Office\Templates\1033\ApothecaryNewsletter.dotx explorer.exe File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\J0199465.WMF explorer.exe File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\PE00555_.WMF explorer.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\requests\vlm.xml explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.ssl.feature_1.0.0.v20140827-1444\META-INF\ECLIPSE_.SF explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Lisbon explorer.exe File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\J0145168.JPG explorer.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\TypeSupport\Unicode\Mappings\win\CP1252.TXT explorer.exe File opened for modification C:\Program Files\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveProjectToolset\TABON.JPG explorer.exe File created C:\Program Files\VideoLAN\VLC\locale\pa\LC_MESSAGES\7F017-Readme.txt explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\schema\triggerEvaluators.exsd explorer.exe File opened for modification C:\Program Files\Microsoft Office\MEDIA\OFFICE14\LINES\BD15035_.GIF explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Etc\GMT-12 explorer.exe File opened for modification C:\Program Files\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD21421_.GIF explorer.exe File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\J0101861.BMP explorer.exe File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\AG00154_.GIF explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Indian\Christmas explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Vilnius explorer.exe File opened for modification C:\Program Files\Microsoft Office\Stationery\1033\PINELUMB.JPG explorer.exe File opened for modification C:\Program Files\Microsoft Office\Office14\Groove\ToolData\groove.net\Discussion\DiscussionToolIconImagesMask.bmp explorer.exe File opened for modification C:\Program Files\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\Slate\7F017-Readme.txt explorer.exe File opened for modification C:\Program Files\Microsoft Office\Office14\1033\OUTLOOK_F_COL.HXK explorer.exe File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\J0187819.WMF explorer.exe File opened for modification C:\Program Files\VideoLAN\VLC\locale\zu\LC_MESSAGES\vlc.mo explorer.exe File created C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.babel.nls_eclipse_ja_4.4.0.v20140623020002\7F017-Readme.txt explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\META-INF\MANIFEST.MF explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Europe\Simferopol explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.ui.sdk.nl_zh_4.4.0.v20140623020002.jar explorer.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\TypeSupport\Unicode\Mappings\Mac\CORPCHAR.TXT explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification.zh_CN_5.5.0.165303.jar explorer.exe File opened for modification C:\Program Files\Microsoft Office\Office14\1033\PUBSPAPR\PDIR46B.GIF explorer.exe File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\DD01162_.WMF explorer.exe File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\FD01657_.WMF explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.security.ui_1.1.200.v20130626-2037.jar explorer.exe File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\J0289430.JPG explorer.exe File opened for modification C:\Program Files\Microsoft Office\Office14\PROOF\MSSP7EN.LEX explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\.settings\org.eclipse.equinox.p2.artifact.repository.prefs explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\gifs\bookbig.gif explorer.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Antarctica\Mawson explorer.exe File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\WB01842_.GIF explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Irkutsk explorer.exe File opened for modification C:\Program Files\Microsoft Office\CLIPART\PUB60COR\DD01015_.WMF explorer.exe File opened for modification C:\Program Files\RevokeSkip.docx explorer.exe File created C:\Program Files\Microsoft Office\Office14\InfoPathOM\InfoPathOMV12\7F017-Readme.txt explorer.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\AcroForm\PMP\QRCode.pmp explorer.exe File opened for modification C:\Program Files\Microsoft Analysis Services\AS OLEDB\10\Cartridges\as90.xsl explorer.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Asia\Thimphu explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\update_tracking\com-sun-tools-visualvm-threaddump.xml explorer.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\locale\org-netbeans-lib-uihandler_ja.jar explorer.exe -
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exevssadmin.exepid process 1508 vssadmin.exe 4044 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 11625 IoCs
Processes:
explorer.exeexplorer.exepid process 1084 explorer.exe 1084 explorer.exe 1084 explorer.exe 1084 explorer.exe 1084 explorer.exe 1084 explorer.exe 1084 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe 1136 explorer.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
Sample_5e63fe410b2e1300169afd83.bin.exeexplorer.exepid process 1324 Sample_5e63fe410b2e1300169afd83.bin.exe 1084 explorer.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
explorer.exevssvc.exeexplorer.exedescription pid process Token: SeDebugPrivilege 1136 explorer.exe Token: SeBackupPrivilege 1860 vssvc.exe Token: SeRestorePrivilege 1860 vssvc.exe Token: SeAuditPrivilege 1860 vssvc.exe Token: SeDebugPrivilege 1084 explorer.exe Token: SeImpersonatePrivilege 1084 explorer.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
Sample_5e63fe410b2e1300169afd83.bin.exeexplorer.exeexplorer.exedescription pid process target process PID 1324 wrote to memory of 1084 1324 Sample_5e63fe410b2e1300169afd83.bin.exe explorer.exe PID 1324 wrote to memory of 1084 1324 Sample_5e63fe410b2e1300169afd83.bin.exe explorer.exe PID 1324 wrote to memory of 1084 1324 Sample_5e63fe410b2e1300169afd83.bin.exe explorer.exe PID 1324 wrote to memory of 1084 1324 Sample_5e63fe410b2e1300169afd83.bin.exe explorer.exe PID 1084 wrote to memory of 1136 1084 explorer.exe explorer.exe PID 1084 wrote to memory of 1136 1084 explorer.exe explorer.exe PID 1084 wrote to memory of 1136 1084 explorer.exe explorer.exe PID 1084 wrote to memory of 1136 1084 explorer.exe explorer.exe PID 1136 wrote to memory of 1508 1136 explorer.exe vssadmin.exe PID 1136 wrote to memory of 1508 1136 explorer.exe vssadmin.exe PID 1136 wrote to memory of 1508 1136 explorer.exe vssadmin.exe PID 1136 wrote to memory of 1508 1136 explorer.exe vssadmin.exe PID 1084 wrote to memory of 6472 1084 explorer.exe notepad.exe PID 1084 wrote to memory of 6472 1084 explorer.exe notepad.exe PID 1084 wrote to memory of 6472 1084 explorer.exe notepad.exe PID 1084 wrote to memory of 6472 1084 explorer.exe notepad.exe PID 1084 wrote to memory of 4044 1084 explorer.exe vssadmin.exe PID 1084 wrote to memory of 4044 1084 explorer.exe vssadmin.exe PID 1084 wrote to memory of 4044 1084 explorer.exe vssadmin.exe PID 1084 wrote to memory of 4044 1084 explorer.exe vssadmin.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Sample_5e63fe410b2e1300169afd83.bin.exe"C:\Users\Admin\AppData\Local\Temp\Sample_5e63fe410b2e1300169afd83.bin.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1324 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\system32\explorer.exe"2⤵
- Modifies extensions of user files
- Deletes itself
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1084 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\system32\explorer.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1136 -
C:\Windows\system32\vssadmin.exeC:\Windows\system32\vssadmin.exe delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:1508
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C:\Windows\SysWOW64\notepad.exeC:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\7F017-Readme.txt"3⤵PID:6472
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C:\Windows\system32\vssadmin.exeC:\Windows\system32\vssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:4044
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:1860