Analysis
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max time kernel
57s -
max time network
61s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
28/12/2022, 23:18
Static task
static1
Behavioral task
behavioral1
Sample
7a9e33c5307748d5eda1d300f55a0d5efa045edce88bf6d4e2806393f65580b8.exe
Resource
win7-20220901-en
General
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Target
7a9e33c5307748d5eda1d300f55a0d5efa045edce88bf6d4e2806393f65580b8.exe
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Size
2.1MB
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MD5
c9047d22ee6551b3d663d7084f3d1ed1
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SHA1
b9c1320eff08005e55334ad374260d8cd3d787ca
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SHA256
7a9e33c5307748d5eda1d300f55a0d5efa045edce88bf6d4e2806393f65580b8
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SHA512
504157f7f4d0d5fbc029a491f87a49f24c3c5f45ce7fb32ecb8fce5451912c84b06cb47f3ed0741148b0df6a362c2828dbf7fb948cc5f94622f10f74c9b49c3d
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SSDEEP
49152:2ivLILyzK1IFS97Cyy1W1YPYkakGsbvjCYef0C6sBCu319UDXKY:2iv8pK8eyy1ZPZakXyOs0
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 988 is-621U7.tmp 584 SplitFiles123.exe 1668 onPOgX135BJPm.exe -
Loads dropped DLL 10 IoCs
pid Process 2032 7a9e33c5307748d5eda1d300f55a0d5efa045edce88bf6d4e2806393f65580b8.exe 988 is-621U7.tmp 988 is-621U7.tmp 988 is-621U7.tmp 988 is-621U7.tmp 584 SplitFiles123.exe 584 SplitFiles123.exe 584 SplitFiles123.exe 1668 onPOgX135BJPm.exe 1668 onPOgX135BJPm.exe -
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 17 IoCs
description ioc Process File created C:\Program Files (x86)\Split Files\is-915CG.tmp is-621U7.tmp File created C:\Program Files (x86)\Split Files\language\is-D5TS9.tmp is-621U7.tmp File created C:\Program Files (x86)\Split Files\language\is-MMD7J.tmp is-621U7.tmp File created C:\Program Files (x86)\Split Files\is-NNN1H.tmp is-621U7.tmp File created C:\Program Files (x86)\Split Files\is-6U2MF.tmp is-621U7.tmp File created C:\Program Files (x86)\Split Files\language\is-47OGI.tmp is-621U7.tmp File created C:\Program Files (x86)\Split Files\language\is-VIQ55.tmp is-621U7.tmp File created C:\Program Files (x86)\Split Files\language\is-VKMK6.tmp is-621U7.tmp File created C:\Program Files (x86)\Split Files\language\is-NLARU.tmp is-621U7.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-621U7.tmp File created C:\Program Files (x86)\Split Files\is-BOP0P.tmp is-621U7.tmp File created C:\Program Files (x86)\Split Files\is-RNH4L.tmp is-621U7.tmp File created C:\Program Files (x86)\Split Files\unins000.dat is-621U7.tmp File created C:\Program Files (x86)\Split Files\language\is-BNMOP.tmp is-621U7.tmp File created C:\Program Files (x86)\Split Files\language\is-3LPV5.tmp is-621U7.tmp File created C:\Program Files (x86)\Split Files\language\is-KR61S.tmp is-621U7.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles123.exe is-621U7.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 1296 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 584 SplitFiles123.exe 584 SplitFiles123.exe 584 SplitFiles123.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1296 taskkill.exe Token: SeRestorePrivilege 988 is-621U7.tmp Token: SeBackupPrivilege 988 is-621U7.tmp -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 2032 wrote to memory of 988 2032 7a9e33c5307748d5eda1d300f55a0d5efa045edce88bf6d4e2806393f65580b8.exe 27 PID 2032 wrote to memory of 988 2032 7a9e33c5307748d5eda1d300f55a0d5efa045edce88bf6d4e2806393f65580b8.exe 27 PID 2032 wrote to memory of 988 2032 7a9e33c5307748d5eda1d300f55a0d5efa045edce88bf6d4e2806393f65580b8.exe 27 PID 2032 wrote to memory of 988 2032 7a9e33c5307748d5eda1d300f55a0d5efa045edce88bf6d4e2806393f65580b8.exe 27 PID 2032 wrote to memory of 988 2032 7a9e33c5307748d5eda1d300f55a0d5efa045edce88bf6d4e2806393f65580b8.exe 27 PID 2032 wrote to memory of 988 2032 7a9e33c5307748d5eda1d300f55a0d5efa045edce88bf6d4e2806393f65580b8.exe 27 PID 2032 wrote to memory of 988 2032 7a9e33c5307748d5eda1d300f55a0d5efa045edce88bf6d4e2806393f65580b8.exe 27 PID 988 wrote to memory of 584 988 is-621U7.tmp 28 PID 988 wrote to memory of 584 988 is-621U7.tmp 28 PID 988 wrote to memory of 584 988 is-621U7.tmp 28 PID 988 wrote to memory of 584 988 is-621U7.tmp 28 PID 988 wrote to memory of 584 988 is-621U7.tmp 28 PID 988 wrote to memory of 584 988 is-621U7.tmp 28 PID 988 wrote to memory of 584 988 is-621U7.tmp 28 PID 584 wrote to memory of 1668 584 SplitFiles123.exe 29 PID 584 wrote to memory of 1668 584 SplitFiles123.exe 29 PID 584 wrote to memory of 1668 584 SplitFiles123.exe 29 PID 584 wrote to memory of 1668 584 SplitFiles123.exe 29 PID 584 wrote to memory of 1668 584 SplitFiles123.exe 29 PID 584 wrote to memory of 1668 584 SplitFiles123.exe 29 PID 584 wrote to memory of 1668 584 SplitFiles123.exe 29 PID 584 wrote to memory of 1912 584 SplitFiles123.exe 32 PID 584 wrote to memory of 1912 584 SplitFiles123.exe 32 PID 584 wrote to memory of 1912 584 SplitFiles123.exe 32 PID 584 wrote to memory of 1912 584 SplitFiles123.exe 32 PID 584 wrote to memory of 1912 584 SplitFiles123.exe 32 PID 584 wrote to memory of 1912 584 SplitFiles123.exe 32 PID 584 wrote to memory of 1912 584 SplitFiles123.exe 32 PID 1912 wrote to memory of 1296 1912 cmd.exe 34 PID 1912 wrote to memory of 1296 1912 cmd.exe 34 PID 1912 wrote to memory of 1296 1912 cmd.exe 34 PID 1912 wrote to memory of 1296 1912 cmd.exe 34 PID 1912 wrote to memory of 1296 1912 cmd.exe 34 PID 1912 wrote to memory of 1296 1912 cmd.exe 34 PID 1912 wrote to memory of 1296 1912 cmd.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\7a9e33c5307748d5eda1d300f55a0d5efa045edce88bf6d4e2806393f65580b8.exe"C:\Users\Admin\AppData\Local\Temp\7a9e33c5307748d5eda1d300f55a0d5efa045edce88bf6d4e2806393f65580b8.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Users\Admin\AppData\Local\Temp\is-F8F4O.tmp\is-621U7.tmp"C:\Users\Admin\AppData\Local\Temp\is-F8F4O.tmp\is-621U7.tmp" /SL4 $70124 "C:\Users\Admin\AppData\Local\Temp\7a9e33c5307748d5eda1d300f55a0d5efa045edce88bf6d4e2806393f65580b8.exe" 1837330 2176002⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:988 -
C:\Program Files (x86)\Split Files\SplitFiles123.exe"C:\Program Files (x86)\Split Files\SplitFiles123.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:584 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\onPOgX135BJPm.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1668
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "SplitFiles123.exe" /f & erase "C:\Program Files (x86)\Split Files\SplitFiles123.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1912 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles123.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1296
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.2MB
MD5ed6b7e901e1bb5d2f621de3302069796
SHA1c9ef00f91c1b3d1115f3258a9367b1b578594289
SHA256cfca78bd05c37a53f833dbce3f17313d813b3986e56265f37ce1c2a5f175d878
SHA512fd3fc1db8e3e1ceb7bf8a4c7de26cd3dc880543735f8a591248f6a2a608f2dccb67c858cec8a973aecd96355d0d37ee646bac592106066471ee90f7729eea91e
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Filesize
3.2MB
MD5ed6b7e901e1bb5d2f621de3302069796
SHA1c9ef00f91c1b3d1115f3258a9367b1b578594289
SHA256cfca78bd05c37a53f833dbce3f17313d813b3986e56265f37ce1c2a5f175d878
SHA512fd3fc1db8e3e1ceb7bf8a4c7de26cd3dc880543735f8a591248f6a2a608f2dccb67c858cec8a973aecd96355d0d37ee646bac592106066471ee90f7729eea91e
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Filesize
806KB
MD54f3db9263ab998737f14cfb0cc7da686
SHA11f3947a6b5c900f28a93abb7a097aea5efa76f58
SHA256f8ce6681396db8b8a95cdf7dbf02b68c847922aeacd0277a52a4e5ca399f87aa
SHA51260d5207b7af2dadf63aeb6123ed466e779cc9b04ca15f303416b348b8e5ee9c147ee578d5e586df749d1facf460c84090436a0d4944fdebd334373f0f6c18f8d
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Filesize
806KB
MD54f3db9263ab998737f14cfb0cc7da686
SHA11f3947a6b5c900f28a93abb7a097aea5efa76f58
SHA256f8ce6681396db8b8a95cdf7dbf02b68c847922aeacd0277a52a4e5ca399f87aa
SHA51260d5207b7af2dadf63aeb6123ed466e779cc9b04ca15f303416b348b8e5ee9c147ee578d5e586df749d1facf460c84090436a0d4944fdebd334373f0f6c18f8d
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
3.2MB
MD5ed6b7e901e1bb5d2f621de3302069796
SHA1c9ef00f91c1b3d1115f3258a9367b1b578594289
SHA256cfca78bd05c37a53f833dbce3f17313d813b3986e56265f37ce1c2a5f175d878
SHA512fd3fc1db8e3e1ceb7bf8a4c7de26cd3dc880543735f8a591248f6a2a608f2dccb67c858cec8a973aecd96355d0d37ee646bac592106066471ee90f7729eea91e
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Filesize
3.2MB
MD5ed6b7e901e1bb5d2f621de3302069796
SHA1c9ef00f91c1b3d1115f3258a9367b1b578594289
SHA256cfca78bd05c37a53f833dbce3f17313d813b3986e56265f37ce1c2a5f175d878
SHA512fd3fc1db8e3e1ceb7bf8a4c7de26cd3dc880543735f8a591248f6a2a608f2dccb67c858cec8a973aecd96355d0d37ee646bac592106066471ee90f7729eea91e
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Filesize
3.2MB
MD5ed6b7e901e1bb5d2f621de3302069796
SHA1c9ef00f91c1b3d1115f3258a9367b1b578594289
SHA256cfca78bd05c37a53f833dbce3f17313d813b3986e56265f37ce1c2a5f175d878
SHA512fd3fc1db8e3e1ceb7bf8a4c7de26cd3dc880543735f8a591248f6a2a608f2dccb67c858cec8a973aecd96355d0d37ee646bac592106066471ee90f7729eea91e
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Filesize
806KB
MD54f3db9263ab998737f14cfb0cc7da686
SHA11f3947a6b5c900f28a93abb7a097aea5efa76f58
SHA256f8ce6681396db8b8a95cdf7dbf02b68c847922aeacd0277a52a4e5ca399f87aa
SHA51260d5207b7af2dadf63aeb6123ed466e779cc9b04ca15f303416b348b8e5ee9c147ee578d5e586df749d1facf460c84090436a0d4944fdebd334373f0f6c18f8d
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
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Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c