Analysis
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max time kernel
82s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
04/12/2022, 05:28
Static task
static1
Behavioral task
behavioral1
Sample
ce8c362b149741c5d5430d2bd6947cf6e0675e5ff13efbd9b2d497fadcb37f76.exe
Resource
win7-20220812-en
General
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Target
ce8c362b149741c5d5430d2bd6947cf6e0675e5ff13efbd9b2d497fadcb37f76.exe
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Size
3.5MB
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MD5
0ebb6ba14dac9da560adb466cb57ce47
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SHA1
520f8809fe36c210ec73439e5730b3307603b78c
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SHA256
ce8c362b149741c5d5430d2bd6947cf6e0675e5ff13efbd9b2d497fadcb37f76
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SHA512
aac5ed552cddc16c4f4d259067d214142130a8b7957157d5d197994ff63e2d440603a44a7d64456b2b237e57891dc0088bf08831dcb37483746ebaf9fb2c636a
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SSDEEP
49152:ojSrmHXmpoQYNkM2A0NMIuxutWatq44ks4WPFIXZicAyauyPfyr1xcQr7mT97AG2:oG+mRYNLB0NtM3atrvs4WOqQWhXcy0
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1716 is-UJR26.tmp 4712 PrintFolders.exe 1044 IgKc3.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation PrintFolders.exe -
Loads dropped DLL 1 IoCs
pid Process 1716 is-UJR26.tmp -
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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Drops file in Program Files directory 9 IoCs
description ioc Process File created C:\Program Files (x86)\PrintFolders\unins000.dat is-UJR26.tmp File created C:\Program Files (x86)\PrintFolders\is-2ER3O.tmp is-UJR26.tmp File created C:\Program Files (x86)\PrintFolders\is-RBO93.tmp is-UJR26.tmp File created C:\Program Files (x86)\PrintFolders\is-1SPPE.tmp is-UJR26.tmp File created C:\Program Files (x86)\PrintFolders\is-4FI7L.tmp is-UJR26.tmp File created C:\Program Files (x86)\PrintFolders\is-OO3HP.tmp is-UJR26.tmp File created C:\Program Files (x86)\PrintFolders\is-K7FQI.tmp is-UJR26.tmp File opened for modification C:\Program Files (x86)\PrintFolders\unins000.dat is-UJR26.tmp File opened for modification C:\Program Files (x86)\PrintFolders\PrintFolders.exe is-UJR26.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Kills process with taskkill 1 IoCs
pid Process 3908 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4712 PrintFolders.exe 4712 PrintFolders.exe 4712 PrintFolders.exe 4712 PrintFolders.exe 4712 PrintFolders.exe 4712 PrintFolders.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3908 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 4348 wrote to memory of 1716 4348 ce8c362b149741c5d5430d2bd6947cf6e0675e5ff13efbd9b2d497fadcb37f76.exe 83 PID 4348 wrote to memory of 1716 4348 ce8c362b149741c5d5430d2bd6947cf6e0675e5ff13efbd9b2d497fadcb37f76.exe 83 PID 4348 wrote to memory of 1716 4348 ce8c362b149741c5d5430d2bd6947cf6e0675e5ff13efbd9b2d497fadcb37f76.exe 83 PID 1716 wrote to memory of 4712 1716 is-UJR26.tmp 84 PID 1716 wrote to memory of 4712 1716 is-UJR26.tmp 84 PID 1716 wrote to memory of 4712 1716 is-UJR26.tmp 84 PID 4712 wrote to memory of 1044 4712 PrintFolders.exe 85 PID 4712 wrote to memory of 1044 4712 PrintFolders.exe 85 PID 4712 wrote to memory of 1044 4712 PrintFolders.exe 85 PID 4712 wrote to memory of 4976 4712 PrintFolders.exe 93 PID 4712 wrote to memory of 4976 4712 PrintFolders.exe 93 PID 4712 wrote to memory of 4976 4712 PrintFolders.exe 93 PID 4976 wrote to memory of 3908 4976 cmd.exe 95 PID 4976 wrote to memory of 3908 4976 cmd.exe 95 PID 4976 wrote to memory of 3908 4976 cmd.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\ce8c362b149741c5d5430d2bd6947cf6e0675e5ff13efbd9b2d497fadcb37f76.exe"C:\Users\Admin\AppData\Local\Temp\ce8c362b149741c5d5430d2bd6947cf6e0675e5ff13efbd9b2d497fadcb37f76.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4348 -
C:\Users\Admin\AppData\Local\Temp\is-79U48.tmp\is-UJR26.tmp"C:\Users\Admin\AppData\Local\Temp\is-79U48.tmp\is-UJR26.tmp" /SL4 $8006A "C:\Users\Admin\AppData\Local\Temp\ce8c362b149741c5d5430d2bd6947cf6e0675e5ff13efbd9b2d497fadcb37f76.exe" 3390380 517122⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Program Files (x86)\PrintFolders\PrintFolders.exe"C:\Program Files (x86)\PrintFolders\PrintFolders.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4712 -
C:\Users\Admin\AppData\Roaming\{d6dc608d-2a27-11ed-a0e3-806e6f6e6963}\IgKc3.exe4⤵
- Executes dropped EXE
PID:1044
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "PrintFolders.exe" /f & erase "C:\Program Files (x86)\PrintFolders\PrintFolders.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:4976 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "PrintFolders.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3908
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
5.7MB
MD54e7679edaf4d602e12ed7749df9fd85c
SHA121b468a02465ac596dd6aa4bba966ca84851afb8
SHA256dfaed150acc7e50f8bc314b89dc0ad25786fffe377bdcf0c05aea800e7b0fcf4
SHA512a265d12e9fb9c7ef3b28c1d65645f7fc28130c0acb49f2b21ddc20cab2a45b91d9166e135d371f5ba3f3f2cd9539304f08b0b6af122a64f8ea471f2a2689d9e9
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Filesize
5.7MB
MD54e7679edaf4d602e12ed7749df9fd85c
SHA121b468a02465ac596dd6aa4bba966ca84851afb8
SHA256dfaed150acc7e50f8bc314b89dc0ad25786fffe377bdcf0c05aea800e7b0fcf4
SHA512a265d12e9fb9c7ef3b28c1d65645f7fc28130c0acb49f2b21ddc20cab2a45b91d9166e135d371f5ba3f3f2cd9539304f08b0b6af122a64f8ea471f2a2689d9e9
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Filesize
643KB
MD5363a4d2aa5d6cf5cbb2267cccf0c4436
SHA1a4cdb756698ed28f522956166a6292e9e309dd9c
SHA256b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021
SHA512b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70
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Filesize
643KB
MD5363a4d2aa5d6cf5cbb2267cccf0c4436
SHA1a4cdb756698ed28f522956166a6292e9e309dd9c
SHA256b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021
SHA512b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c