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Analysis
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max time kernel
106s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
27/12/2022, 04:33
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
General
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Target
file.exe
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Size
1.9MB
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MD5
f7c0326793465619ece15ae1f5809fa2
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SHA1
3183245da3a06712cfd4beafe39fdde12efe3d5a
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SHA256
6502478e95ad00c37bcba9820c2e43d62d7408b583e4f97fdc81f0ca85030873
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SHA512
294457f7e86ca5a3448f90e2f94422a7187cc16e4a509cc57320cdc40bca69c9b604771e252a10a74ec12d77f365c9b0f31b2fe444a76f4b9ce7bd4c3c11cab1
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SSDEEP
49152:0VqfC8dwexVHEcq3YzKvlTndv6nMkAgvJ4J76aS0qPh:0YfC8dZREK86nMkzEutZ
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 4416 is-MOG1S.tmp 2864 SplitFiles122.exe 4348 QaqY9Z7RSSkmCp.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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation SplitFiles122.exe -
Loads dropped DLL 1 IoCs
pid Process 4416 is-MOG1S.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 17 IoCs
description ioc Process File created C:\Program Files (x86)\Split Files\language\is-NPG1F.tmp is-MOG1S.tmp File created C:\Program Files (x86)\Split Files\language\is-3MV6D.tmp is-MOG1S.tmp File created C:\Program Files (x86)\Split Files\language\is-RVB1T.tmp is-MOG1S.tmp File created C:\Program Files (x86)\Split Files\language\is-ILOO4.tmp is-MOG1S.tmp File created C:\Program Files (x86)\Split Files\language\is-8VHEQ.tmp is-MOG1S.tmp File created C:\Program Files (x86)\Split Files\language\is-PCCLR.tmp is-MOG1S.tmp File created C:\Program Files (x86)\Split Files\is-95CHO.tmp is-MOG1S.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-MOG1S.tmp File created C:\Program Files (x86)\Split Files\unins000.dat is-MOG1S.tmp File created C:\Program Files (x86)\Split Files\language\is-MI04V.tmp is-MOG1S.tmp File created C:\Program Files (x86)\Split Files\language\is-J4G96.tmp is-MOG1S.tmp File created C:\Program Files (x86)\Split Files\is-7SRLL.tmp is-MOG1S.tmp File created C:\Program Files (x86)\Split Files\is-QUTNS.tmp is-MOG1S.tmp File created C:\Program Files (x86)\Split Files\language\is-OH76G.tmp is-MOG1S.tmp File created C:\Program Files (x86)\Split Files\is-MPTSD.tmp is-MOG1S.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles122.exe is-MOG1S.tmp File created C:\Program Files (x86)\Split Files\is-536Q1.tmp is-MOG1S.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 4604 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2864 SplitFiles122.exe 2864 SplitFiles122.exe 2864 SplitFiles122.exe 2864 SplitFiles122.exe 2864 SplitFiles122.exe 2864 SplitFiles122.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4604 taskkill.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 3388 wrote to memory of 4416 3388 file.exe 82 PID 3388 wrote to memory of 4416 3388 file.exe 82 PID 3388 wrote to memory of 4416 3388 file.exe 82 PID 4416 wrote to memory of 2864 4416 is-MOG1S.tmp 83 PID 4416 wrote to memory of 2864 4416 is-MOG1S.tmp 83 PID 4416 wrote to memory of 2864 4416 is-MOG1S.tmp 83 PID 2864 wrote to memory of 4348 2864 SplitFiles122.exe 86 PID 2864 wrote to memory of 4348 2864 SplitFiles122.exe 86 PID 2864 wrote to memory of 4348 2864 SplitFiles122.exe 86 PID 2864 wrote to memory of 3056 2864 SplitFiles122.exe 92 PID 2864 wrote to memory of 3056 2864 SplitFiles122.exe 92 PID 2864 wrote to memory of 3056 2864 SplitFiles122.exe 92 PID 3056 wrote to memory of 4604 3056 cmd.exe 94 PID 3056 wrote to memory of 4604 3056 cmd.exe 94 PID 3056 wrote to memory of 4604 3056 cmd.exe 94
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3388 -
C:\Users\Admin\AppData\Local\Temp\is-C8K0M.tmp\is-MOG1S.tmp"C:\Users\Admin\AppData\Local\Temp\is-C8K0M.tmp\is-MOG1S.tmp" /SL4 $90040 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1737205 1812482⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4416 -
C:\Program Files (x86)\Split Files\SplitFiles122.exe"C:\Program Files (x86)\Split Files\SplitFiles122.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2864 -
C:\Users\Admin\AppData\Roaming\{6e1ce040-6208-11ed-b5ce-806e6f6e6963}\QaqY9Z7RSSkmCp.exe
- Executes dropped EXE
PID:4348
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "SplitFiles122.exe" /f & erase "C:\Program Files (x86)\Split Files\SplitFiles122.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:3056 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles122.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4604
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
3.2MB
MD597e6a6a8ed286ae4eac4c0bf8bfabcbf
SHA17efa7b85b98a24c080346224ad835644108f0c50
SHA25625d8467172c3bfbd25c5b3e3be6b876dd5336941e6280db445fd44f70e8e51cc
SHA51231bf54cbb821114b999f16bc20bf23e7f06ce82e4876ade80278b5d56f801c12d0ee85733c0b095f05906317914b635a5109343354f90a81ac3a88a23c3e3cab
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Filesize
3.2MB
MD597e6a6a8ed286ae4eac4c0bf8bfabcbf
SHA17efa7b85b98a24c080346224ad835644108f0c50
SHA25625d8467172c3bfbd25c5b3e3be6b876dd5336941e6280db445fd44f70e8e51cc
SHA51231bf54cbb821114b999f16bc20bf23e7f06ce82e4876ade80278b5d56f801c12d0ee85733c0b095f05906317914b635a5109343354f90a81ac3a88a23c3e3cab
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Filesize
770KB
MD5a40f6e5d65178feb9ba406771470f1e9
SHA11e247679ffeffd6908aa2d67e6033fec40fc46d0
SHA25660cd72b4c6b2ce840221b05474286810bed585376a9e0c36fb63ec387284b59e
SHA512dfafa1884102b7ef09c53820e90effea64c1b89fd06eabc0f9d6eca804def9a3798fdd51915d9dc9a632e1d1c2588a7d164e393a4aff72965aeca210673c1386
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Filesize
770KB
MD5a40f6e5d65178feb9ba406771470f1e9
SHA11e247679ffeffd6908aa2d67e6033fec40fc46d0
SHA25660cd72b4c6b2ce840221b05474286810bed585376a9e0c36fb63ec387284b59e
SHA512dfafa1884102b7ef09c53820e90effea64c1b89fd06eabc0f9d6eca804def9a3798fdd51915d9dc9a632e1d1c2588a7d164e393a4aff72965aeca210673c1386
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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