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Analysis
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max time kernel
58s -
max time network
61s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
24/12/2022, 11:32
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
General
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Target
file.exe
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Size
1.8MB
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MD5
9c3a561f49330834fd3f3fbf1d6f62d0
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SHA1
f1ed0b7201a75a8513d9779131fd9150c0075ce8
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SHA256
2f05d7bb32f6d4a69839e8263b9548139dd709220b784664164529a54b7facbf
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SHA512
71ee480576fd88654d3811bf6ec4a712b6ba5c79272d615af4dcdbb24d98c8ed90a0c707508a095603c366148486357c3ae52acd0b9fecbebd8eab516818e520
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SSDEEP
49152:WiflG4x66XvKCSu1ZVFTKw+Uwt5Vi/Za6:WiAE3itu7D010M6
Malware Config
Extracted
nymaim
45.139.105.171
85.31.46.167
Signatures
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Executes dropped EXE 3 IoCs
pid Process 2008 is-HSKKJ.tmp 904 SplitFiles119.exe 1076 Maxh4hVhCTouG.exe -
Loads dropped DLL 10 IoCs
pid Process 2020 file.exe 2008 is-HSKKJ.tmp 2008 is-HSKKJ.tmp 2008 is-HSKKJ.tmp 2008 is-HSKKJ.tmp 904 SplitFiles119.exe 904 SplitFiles119.exe 904 SplitFiles119.exe 1076 Maxh4hVhCTouG.exe 1076 Maxh4hVhCTouG.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\language\is-5EICK.tmp is-HSKKJ.tmp File created C:\Program Files (x86)\Split Files\is-PG9N4.tmp is-HSKKJ.tmp File created C:\Program Files (x86)\Split Files\is-BV2A1.tmp is-HSKKJ.tmp File created C:\Program Files (x86)\Split Files\is-B5OAP.tmp is-HSKKJ.tmp File created C:\Program Files (x86)\Split Files\unins000.dat is-HSKKJ.tmp File created C:\Program Files (x86)\Split Files\is-3TH5U.tmp is-HSKKJ.tmp File created C:\Program Files (x86)\Split Files\language\is-RVI3S.tmp is-HSKKJ.tmp File created C:\Program Files (x86)\Split Files\language\is-J2R4G.tmp is-HSKKJ.tmp File created C:\Program Files (x86)\Split Files\language\is-01PSO.tmp is-HSKKJ.tmp File created C:\Program Files (x86)\Split Files\is-DQIP8.tmp is-HSKKJ.tmp File created C:\Program Files (x86)\Split Files\language\is-AQT64.tmp is-HSKKJ.tmp File opened for modification C:\Program Files (x86)\Split Files\unins000.dat is-HSKKJ.tmp File opened for modification C:\Program Files (x86)\Split Files\SplitFiles119.exe is-HSKKJ.tmp File created C:\Program Files (x86)\Split Files\language\is-GUEI9.tmp is-HSKKJ.tmp File created C:\Program Files (x86)\Split Files\language\is-0P8N7.tmp is-HSKKJ.tmp File created C:\Program Files (x86)\Split Files\language\is-E741Q.tmp is-HSKKJ.tmp File created C:\Program Files (x86)\Split Files\language\is-TLAM0.tmp is-HSKKJ.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 952 taskkill.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 904 SplitFiles119.exe 904 SplitFiles119.exe 904 SplitFiles119.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 952 taskkill.exe Token: SeRestorePrivilege 2008 is-HSKKJ.tmp Token: SeBackupPrivilege 2008 is-HSKKJ.tmp -
Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 2020 wrote to memory of 2008 2020 file.exe 27 PID 2020 wrote to memory of 2008 2020 file.exe 27 PID 2020 wrote to memory of 2008 2020 file.exe 27 PID 2020 wrote to memory of 2008 2020 file.exe 27 PID 2020 wrote to memory of 2008 2020 file.exe 27 PID 2020 wrote to memory of 2008 2020 file.exe 27 PID 2020 wrote to memory of 2008 2020 file.exe 27 PID 2008 wrote to memory of 904 2008 is-HSKKJ.tmp 28 PID 2008 wrote to memory of 904 2008 is-HSKKJ.tmp 28 PID 2008 wrote to memory of 904 2008 is-HSKKJ.tmp 28 PID 2008 wrote to memory of 904 2008 is-HSKKJ.tmp 28 PID 2008 wrote to memory of 904 2008 is-HSKKJ.tmp 28 PID 2008 wrote to memory of 904 2008 is-HSKKJ.tmp 28 PID 2008 wrote to memory of 904 2008 is-HSKKJ.tmp 28 PID 904 wrote to memory of 1076 904 SplitFiles119.exe 29 PID 904 wrote to memory of 1076 904 SplitFiles119.exe 29 PID 904 wrote to memory of 1076 904 SplitFiles119.exe 29 PID 904 wrote to memory of 1076 904 SplitFiles119.exe 29 PID 904 wrote to memory of 1076 904 SplitFiles119.exe 29 PID 904 wrote to memory of 1076 904 SplitFiles119.exe 29 PID 904 wrote to memory of 1076 904 SplitFiles119.exe 29 PID 904 wrote to memory of 1156 904 SplitFiles119.exe 32 PID 904 wrote to memory of 1156 904 SplitFiles119.exe 32 PID 904 wrote to memory of 1156 904 SplitFiles119.exe 32 PID 904 wrote to memory of 1156 904 SplitFiles119.exe 32 PID 904 wrote to memory of 1156 904 SplitFiles119.exe 32 PID 904 wrote to memory of 1156 904 SplitFiles119.exe 32 PID 904 wrote to memory of 1156 904 SplitFiles119.exe 32 PID 1156 wrote to memory of 952 1156 cmd.exe 34 PID 1156 wrote to memory of 952 1156 cmd.exe 34 PID 1156 wrote to memory of 952 1156 cmd.exe 34 PID 1156 wrote to memory of 952 1156 cmd.exe 34 PID 1156 wrote to memory of 952 1156 cmd.exe 34 PID 1156 wrote to memory of 952 1156 cmd.exe 34 PID 1156 wrote to memory of 952 1156 cmd.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Users\Admin\AppData\Local\Temp\is-QLNV9.tmp\is-HSKKJ.tmp"C:\Users\Admin\AppData\Local\Temp\is-QLNV9.tmp\is-HSKKJ.tmp" /SL4 $70122 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1587277 962562⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2008 -
C:\Program Files (x86)\Split Files\SplitFiles119.exe"C:\Program Files (x86)\Split Files\SplitFiles119.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:904 -
C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\Maxh4hVhCTouG.exe
- Executes dropped EXE
- Loads dropped DLL
PID:1076
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "SplitFiles119.exe" /f & erase "C:\Program Files (x86)\Split Files\SplitFiles119.exe" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:1156 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "SplitFiles119.exe" /f5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:952
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
3.1MB
MD502e672f108670f19e64aea70258dfa6d
SHA1ba65a97b5da20abeb4f76229e3ab50ba6c70a572
SHA2568caaa712bf7f5f10f600ab4f96c05a127edccaf08a48df6e9975e90db02517dc
SHA512c409d4583966659214feb42f36deab2397cb1fc0659da5d44ea349c087fa0cd5e7fffb8a6803be1a04d322fee914b9f472e095c10410a7344f478c0eb1de8197
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Filesize
3.1MB
MD502e672f108670f19e64aea70258dfa6d
SHA1ba65a97b5da20abeb4f76229e3ab50ba6c70a572
SHA2568caaa712bf7f5f10f600ab4f96c05a127edccaf08a48df6e9975e90db02517dc
SHA512c409d4583966659214feb42f36deab2397cb1fc0659da5d44ea349c087fa0cd5e7fffb8a6803be1a04d322fee914b9f472e095c10410a7344f478c0eb1de8197
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Filesize
687KB
MD5ec5433295f9c12c2ac5bad1a56aa05b6
SHA1ec15e0b4f070b25a2b074c235f0d6ec0b2778000
SHA256a726a8996bdfca72a14eed5af6c7136bd195fb6c214326c5345d7ab1f08b4f84
SHA512c866bdd9173f2a9efb2ed515ec0fa0f597d29e28c853c37dea5e94c059ec009c32ef430ae002ceff44920a847037f1dee5b45c8e99bbed121227f41c4d3f3737
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Filesize
687KB
MD5ec5433295f9c12c2ac5bad1a56aa05b6
SHA1ec15e0b4f070b25a2b074c235f0d6ec0b2778000
SHA256a726a8996bdfca72a14eed5af6c7136bd195fb6c214326c5345d7ab1f08b4f84
SHA512c866bdd9173f2a9efb2ed515ec0fa0f597d29e28c853c37dea5e94c059ec009c32ef430ae002ceff44920a847037f1dee5b45c8e99bbed121227f41c4d3f3737
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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
3.1MB
MD502e672f108670f19e64aea70258dfa6d
SHA1ba65a97b5da20abeb4f76229e3ab50ba6c70a572
SHA2568caaa712bf7f5f10f600ab4f96c05a127edccaf08a48df6e9975e90db02517dc
SHA512c409d4583966659214feb42f36deab2397cb1fc0659da5d44ea349c087fa0cd5e7fffb8a6803be1a04d322fee914b9f472e095c10410a7344f478c0eb1de8197
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Filesize
3.1MB
MD502e672f108670f19e64aea70258dfa6d
SHA1ba65a97b5da20abeb4f76229e3ab50ba6c70a572
SHA2568caaa712bf7f5f10f600ab4f96c05a127edccaf08a48df6e9975e90db02517dc
SHA512c409d4583966659214feb42f36deab2397cb1fc0659da5d44ea349c087fa0cd5e7fffb8a6803be1a04d322fee914b9f472e095c10410a7344f478c0eb1de8197
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Filesize
3.1MB
MD502e672f108670f19e64aea70258dfa6d
SHA1ba65a97b5da20abeb4f76229e3ab50ba6c70a572
SHA2568caaa712bf7f5f10f600ab4f96c05a127edccaf08a48df6e9975e90db02517dc
SHA512c409d4583966659214feb42f36deab2397cb1fc0659da5d44ea349c087fa0cd5e7fffb8a6803be1a04d322fee914b9f472e095c10410a7344f478c0eb1de8197
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Filesize
687KB
MD5ec5433295f9c12c2ac5bad1a56aa05b6
SHA1ec15e0b4f070b25a2b074c235f0d6ec0b2778000
SHA256a726a8996bdfca72a14eed5af6c7136bd195fb6c214326c5345d7ab1f08b4f84
SHA512c866bdd9173f2a9efb2ed515ec0fa0f597d29e28c853c37dea5e94c059ec009c32ef430ae002ceff44920a847037f1dee5b45c8e99bbed121227f41c4d3f3737
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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