Analysis
-
max time kernel
66s -
max time network
67s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
23/12/2022, 00:31
Static task
static1
Behavioral task
behavioral1
Sample
11636166097ac5a5700074e031416bf9b4ba944834977241f39beb7ae1b46e4e.exe
Resource
win7-20221111-en
General
-
Target
11636166097ac5a5700074e031416bf9b4ba944834977241f39beb7ae1b46e4e.exe
-
Size
1.7MB
-
MD5
42b3076aac08e9dd6ead632c7c9595a2
-
SHA1
8449e6e34200909ed474121c93849e0bfcef4c6c
-
SHA256
11636166097ac5a5700074e031416bf9b4ba944834977241f39beb7ae1b46e4e
-
SHA512
3d162346ef81a91c09e5444aa140733befad7587c8a452ddd699d2716d1704724be101b2735b880ae695ac4551179fbb505140053f7d69647c007e3c9f164271
-
SSDEEP
49152:6JxZrErjlnvh+g56pYXt2+FGu7qn/K6X1NeVi6:6H9yjlvwGrXtL+/NUi6
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
-
Executes dropped EXE 3 IoCs
pid Process 1996 is-KU5B8.tmp 1504 SplitFiles.exe 1508 IXqB05C3J.exe -
Loads dropped DLL 10 IoCs
pid Process 2004 11636166097ac5a5700074e031416bf9b4ba944834977241f39beb7ae1b46e4e.exe 1996 is-KU5B8.tmp 1996 is-KU5B8.tmp 1996 is-KU5B8.tmp 1996 is-KU5B8.tmp 1504 SplitFiles.exe 1504 SplitFiles.exe 1504 SplitFiles.exe 1508 IXqB05C3J.exe 1508 IXqB05C3J.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Drops file in Program Files directory 17 IoCs
description ioc Process File created C:\Program Files (x86)\Split Files\language\is-EM19K.tmp is-KU5B8.tmp File created C:\Program Files (x86)\Split Files\language\is-PBI59.tmp is-KU5B8.tmp File created C:\Program Files (x86)\Split Files\is-1C6PI.tmp is-KU5B8.tmp File created C:\Program Files (x86)\Split Files\is-KTNVS.tmp is-KU5B8.tmp File created C:\Program Files (x86)\Split Files\language\is-E7I83.tmp is-KU5B8.tmp File created C:\Program Files (x86)\Split Files\language\is-HQE09.tmp is-KU5B8.tmp File created C:\Program Files (x86)\Split Files\language\is-7SU0D.tmp is-KU5B8.tmp File created C:\Program Files (x86)\Split Files\is-CBJIQ.tmp is-KU5B8.tmp File created C:\Program Files (x86)\Split Files\is-RRI0N.tmp is-KU5B8.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles.exe is-KU5B8.tmp File created C:\Program Files (x86)\Split Files\language\is-A5G90.tmp is-KU5B8.tmp File created C:\Program Files (x86)\Split Files\is-8V1J0.tmp is-KU5B8.tmp File created C:\Program Files (x86)\Split Files\language\is-3SQ8M.tmp is-KU5B8.tmp File created C:\Program Files (x86)\Split Files\unins000.dat is-KU5B8.tmp File created C:\Program Files (x86)\Split Files\language\is-7BAKT.tmp is-KU5B8.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-KU5B8.tmp File created C:\Program Files (x86)\Split Files\language\is-J2CCG.tmp is-KU5B8.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Kills process with taskkill 1 IoCs
pid Process 1164 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1504 SplitFiles.exe 1504 SplitFiles.exe 1504 SplitFiles.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeRestorePrivilege 1996 is-KU5B8.tmp Token: SeBackupPrivilege 1996 is-KU5B8.tmp Token: SeDebugPrivilege 1164 taskkill.exe -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 2004 wrote to memory of 1996 2004 11636166097ac5a5700074e031416bf9b4ba944834977241f39beb7ae1b46e4e.exe 27 PID 2004 wrote to memory of 1996 2004 11636166097ac5a5700074e031416bf9b4ba944834977241f39beb7ae1b46e4e.exe 27 PID 2004 wrote to memory of 1996 2004 11636166097ac5a5700074e031416bf9b4ba944834977241f39beb7ae1b46e4e.exe 27 PID 2004 wrote to memory of 1996 2004 11636166097ac5a5700074e031416bf9b4ba944834977241f39beb7ae1b46e4e.exe 27 PID 2004 wrote to memory of 1996 2004 11636166097ac5a5700074e031416bf9b4ba944834977241f39beb7ae1b46e4e.exe 27 PID 2004 wrote to memory of 1996 2004 11636166097ac5a5700074e031416bf9b4ba944834977241f39beb7ae1b46e4e.exe 27 PID 2004 wrote to memory of 1996 2004 11636166097ac5a5700074e031416bf9b4ba944834977241f39beb7ae1b46e4e.exe 27 PID 1996 wrote to memory of 1504 1996 is-KU5B8.tmp 28 PID 1996 wrote to memory of 1504 1996 is-KU5B8.tmp 28 PID 1996 wrote to memory of 1504 1996 is-KU5B8.tmp 28 PID 1996 wrote to memory of 1504 1996 is-KU5B8.tmp 28 PID 1996 wrote to memory of 1504 1996 is-KU5B8.tmp 28 PID 1996 wrote to memory of 1504 1996 is-KU5B8.tmp 28 PID 1996 wrote to memory of 1504 1996 is-KU5B8.tmp 28 PID 1504 wrote to memory of 1508 1504 SplitFiles.exe 29 PID 1504 wrote to memory of 1508 1504 SplitFiles.exe 29 PID 1504 wrote to memory of 1508 1504 SplitFiles.exe 29 PID 1504 wrote to memory of 1508 1504 SplitFiles.exe 29 PID 1504 wrote to memory of 1508 1504 SplitFiles.exe 29 PID 1504 wrote to memory of 1508 1504 SplitFiles.exe 29 PID 1504 wrote to memory of 1508 1504 SplitFiles.exe 29 PID 1504 wrote to memory of 1664 1504 SplitFiles.exe 32 PID 1504 wrote to memory of 1664 1504 SplitFiles.exe 32 PID 1504 wrote to memory of 1664 1504 SplitFiles.exe 32 PID 1504 wrote to memory of 1664 1504 SplitFiles.exe 32 PID 1504 wrote to memory of 1664 1504 SplitFiles.exe 32 PID 1504 wrote to memory of 1664 1504 SplitFiles.exe 32 PID 1504 wrote to memory of 1664 1504 SplitFiles.exe 32 PID 1664 wrote to memory of 1164 1664 cmd.exe 34 PID 1664 wrote to memory of 1164 1664 cmd.exe 34 PID 1664 wrote to memory of 1164 1664 cmd.exe 34 PID 1664 wrote to memory of 1164 1664 cmd.exe 34 PID 1664 wrote to memory of 1164 1664 cmd.exe 34 PID 1664 wrote to memory of 1164 1664 cmd.exe 34 PID 1664 wrote to memory of 1164 1664 cmd.exe 34
Processes
-
C:\Users\Admin\AppData\Local\Temp\11636166097ac5a5700074e031416bf9b4ba944834977241f39beb7ae1b46e4e.exe"C:\Users\Admin\AppData\Local\Temp\11636166097ac5a5700074e031416bf9b4ba944834977241f39beb7ae1b46e4e.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2004 -
C:\Users\Admin\AppData\Local\Temp\is-B5QOT.tmp\is-KU5B8.tmp"C:\Users\Admin\AppData\Local\Temp\is-B5QOT.tmp\is-KU5B8.tmp" /SL4 $70122 "C:\Users\Admin\AppData\Local\Temp\11636166097ac5a5700074e031416bf9b4ba944834977241f39beb7ae1b46e4e.exe" 1549880 517122⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Program Files (x86)\Split Files\SplitFiles.exe"C:\Program Files (x86)\Split Files\SplitFiles.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1504 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\IXqB05C3J.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1508
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "SplitFiles.exe" /f & erase "C:\Program Files (x86)\Split Files\SplitFiles.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1664 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1164
-
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
3.0MB
MD57ffd60129c08fa01080aa09586bdfa17
SHA1e57b6f9930011ff507b7d23120d5fb819c270892
SHA2564c2df9cf721e117ae86decbdb7dbdd4c83db6fbf229b1c3413f8a780ae286926
SHA512bb9e21076263a0c512b2802240934c865cc15d01237f27c504848c8f68ff5afd8230f08114483e0b9ca0f3f234af22b14a32b8614d3cb72566605b06e0722e67
-
Filesize
3.0MB
MD57ffd60129c08fa01080aa09586bdfa17
SHA1e57b6f9930011ff507b7d23120d5fb819c270892
SHA2564c2df9cf721e117ae86decbdb7dbdd4c83db6fbf229b1c3413f8a780ae286926
SHA512bb9e21076263a0c512b2802240934c865cc15d01237f27c504848c8f68ff5afd8230f08114483e0b9ca0f3f234af22b14a32b8614d3cb72566605b06e0722e67
-
Filesize
643KB
MD585b94e72c3f2d2b5464e2aaf3c9e242a
SHA1ce7ccae5f50a990d059d59292d4a332979e162ba
SHA2561441464feeef365573af18802c464769b7d3107624fde24604f57e386f97f1a7
SHA512c0c27189989db482be9bda5b6b8b1441bdc5e9b0f3a414ccab4c4be516e7f99e25717845361a5b196114502faaaf21bec7aca91b497acd2e2396f49c31850880
-
Filesize
643KB
MD585b94e72c3f2d2b5464e2aaf3c9e242a
SHA1ce7ccae5f50a990d059d59292d4a332979e162ba
SHA2561441464feeef365573af18802c464769b7d3107624fde24604f57e386f97f1a7
SHA512c0c27189989db482be9bda5b6b8b1441bdc5e9b0f3a414ccab4c4be516e7f99e25717845361a5b196114502faaaf21bec7aca91b497acd2e2396f49c31850880
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
-
Filesize
3.0MB
MD57ffd60129c08fa01080aa09586bdfa17
SHA1e57b6f9930011ff507b7d23120d5fb819c270892
SHA2564c2df9cf721e117ae86decbdb7dbdd4c83db6fbf229b1c3413f8a780ae286926
SHA512bb9e21076263a0c512b2802240934c865cc15d01237f27c504848c8f68ff5afd8230f08114483e0b9ca0f3f234af22b14a32b8614d3cb72566605b06e0722e67
-
Filesize
3.0MB
MD57ffd60129c08fa01080aa09586bdfa17
SHA1e57b6f9930011ff507b7d23120d5fb819c270892
SHA2564c2df9cf721e117ae86decbdb7dbdd4c83db6fbf229b1c3413f8a780ae286926
SHA512bb9e21076263a0c512b2802240934c865cc15d01237f27c504848c8f68ff5afd8230f08114483e0b9ca0f3f234af22b14a32b8614d3cb72566605b06e0722e67
-
Filesize
3.0MB
MD57ffd60129c08fa01080aa09586bdfa17
SHA1e57b6f9930011ff507b7d23120d5fb819c270892
SHA2564c2df9cf721e117ae86decbdb7dbdd4c83db6fbf229b1c3413f8a780ae286926
SHA512bb9e21076263a0c512b2802240934c865cc15d01237f27c504848c8f68ff5afd8230f08114483e0b9ca0f3f234af22b14a32b8614d3cb72566605b06e0722e67
-
Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
-
Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
-
Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
-
Filesize
643KB
MD585b94e72c3f2d2b5464e2aaf3c9e242a
SHA1ce7ccae5f50a990d059d59292d4a332979e162ba
SHA2561441464feeef365573af18802c464769b7d3107624fde24604f57e386f97f1a7
SHA512c0c27189989db482be9bda5b6b8b1441bdc5e9b0f3a414ccab4c4be516e7f99e25717845361a5b196114502faaaf21bec7aca91b497acd2e2396f49c31850880
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
-
Filesize
72KB
MD53fb36cb0b7172e5298d2992d42984d06
SHA1439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA25627ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
SHA5126b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c