Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
29/01/2023, 12:21
Static task
static1
Behavioral task
behavioral1
Sample
916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe
Resource
win7-20221111-en
11 signatures
150 seconds
General
- Target 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe
- Size 4.1MB
- Sample230129-pjba9sef76
- SHA256 916d53e09da4c910f04585026f5aab7410c391e30c0d560159ad16e936272eeb
- MD5 3eaf114e7d481c57147ed8b8ba3c4caa
- SHA1 62ce40d8a9c47527e88dab1e3e60e8495cad6029
- SHA512 0112492901fccec1f5045860b5a1093c38cd859ee3f531ae7aed7ce3c01ea2d9df05420cb93293876b68c5f9ab91b293316df0a068f059c0ba27d6d93de2b2fc
- SSDEEP 98304:6gCJYcoRB/Om0t7MZwAvPcVx0qa96SQ7p1YGt4Q24DEBziWz:6gCScaB/Om0tkw2EEqh1YVV4QV
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
description pid Process procid_target PID 4312 created 1648 4312 svchost.exe 79 - Executes dropped EXE 3 IoCs
pid Process 1648 osmserv.exe 3076 osmserv.exe 848 osmserv.exe - Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation osmserv.exe Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation osmserv.exe - Loads dropped DLL 11 IoCs
pid Process 1116 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe 1116 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe 1116 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe 1116 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe 1648 osmserv.exe 1648 osmserv.exe 3076 osmserv.exe 3076 osmserv.exe 1116 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe 848 osmserv.exe 848 osmserv.exe - Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files\OSM\osmserv.exe 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe File created C:\Program Files\OSM\ssleay32.dll 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe File created C:\Program Files\OSM\libeay32.dll 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1600 schtasks.exe - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 1648 osmserv.exe 1648 osmserv.exe 1648 osmserv.exe 1648 osmserv.exe 1648 osmserv.exe 1648 osmserv.exe 1648 osmserv.exe 1648 osmserv.exe 3076 osmserv.exe 3076 osmserv.exe 3076 osmserv.exe 3076 osmserv.exe 3076 osmserv.exe 3076 osmserv.exe 3076 osmserv.exe 3076 osmserv.exe 848 osmserv.exe 848 osmserv.exe 848 osmserv.exe 848 osmserv.exe 848 osmserv.exe 848 osmserv.exe - Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 1648 osmserv.exe Token: SeTcbPrivilege 4312 svchost.exe Token: SeTcbPrivilege 4312 svchost.exe Token: SeTakeOwnershipPrivilege 3076 osmserv.exe Token: SeTcbPrivilege 3076 osmserv.exe Token: SeTcbPrivilege 3076 osmserv.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1648 osmserv.exe 1648 osmserv.exe 1648 osmserv.exe 1648 osmserv.exe 3076 osmserv.exe 3076 osmserv.exe 3076 osmserv.exe 3076 osmserv.exe 848 osmserv.exe 848 osmserv.exe 848 osmserv.exe 848 osmserv.exe - Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 1116 wrote to memory of 1648 1116 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe 79 PID 1116 wrote to memory of 1648 1116 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe 79 PID 1116 wrote to memory of 1648 1116 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe 79 PID 4312 wrote to memory of 3076 4312 svchost.exe 81 PID 4312 wrote to memory of 3076 4312 svchost.exe 81 PID 4312 wrote to memory of 3076 4312 svchost.exe 81 PID 1116 wrote to memory of 4772 1116 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe 82 PID 1116 wrote to memory of 4772 1116 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe 82 PID 1116 wrote to memory of 4772 1116 916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe 82 PID 4772 wrote to memory of 1600 4772 cmd.exe 84 PID 4772 wrote to memory of 1600 4772 cmd.exe 84 PID 4772 wrote to memory of 1600 4772 cmd.exe 84 PID 4772 wrote to memory of 4644 4772 cmd.exe 85 PID 4772 wrote to memory of 4644 4772 cmd.exe 85 PID 4772 wrote to memory of 4644 4772 cmd.exe 85 PID 4772 wrote to memory of 4184 4772 cmd.exe 86 PID 4772 wrote to memory of 4184 4772 cmd.exe 86 PID 4772 wrote to memory of 4184 4772 cmd.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe"C:\Users\Admin\AppData\Local\Temp\916D53E09DA4C910F04585026F5AAB7410C391E30C0D5.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1116 -
C:\Program Files\OSM\osmserv.exe"C:\Program Files\OSM\osmserv.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1648 -
C:\Program Files\OSM\osmserv.exe"C:\Program Files\OSM\osmserv.exe" -second3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3076
-
-
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c SchTasks /create /f /XML %temp%\Log360.xml /TN \microsoft\windows\defrag\scheduleddefrag && schtasks /Change /TN \microsoft\windows\defrag\scheduleddefrag /ENABLE && schtasks /run /TN \microsoft\windows\defrag\scheduleddefrag2⤵
- Suspicious use of WriteProcessMemory
PID:4772 -
C:\Windows\SysWOW64\schtasks.exeSchTasks /create /f /XML C:\Users\Admin\AppData\Local\Temp\Log360.xml /TN \microsoft\windows\defrag\scheduleddefrag3⤵
- Creates scheduled task(s)
PID:1600
-
-
C:\Windows\SysWOW64\schtasks.exeschtasks /Change /TN \microsoft\windows\defrag\scheduleddefrag /ENABLE3⤵PID:4644
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C:\Windows\SysWOW64\schtasks.exeschtasks /run /TN \microsoft\windows\defrag\scheduleddefrag3⤵PID:4184
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-
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4312
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C:\Program Files\OSM\osmserv.exe"C:\Program Files\OSM\osmserv.exe"1⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:848
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Program Files\OSM\libeay32.dll
- Size 1.3MB
- SHA256 a8124500cae0aba3411428c2c6df2762ea11cc11c312abed415d3f3667eb6884
- MD5 4cb2e1b9294ddae1bf7dcaaf42b365d1
- SHA1 a225f53a8403d9b73d77bcbb075194520cce5a14
- SHA512 46cf4abf9121c865c725ca159df71066e0662595915d653914e4ec047f94e2ab3823f85c9e0e0c1311304c460c90224bd3141da62091c733dcaa5dccf64c04bb
- SSDEEP 24576:VD8B+KpPexB6mqwktXUcAVEaFQXhL0porIqo+Frzba:WKkmlktXUcAVEDhQporIqo+Frzba
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\OSM\libeay32.dll
- Size 1.3MB
- SHA256 a8124500cae0aba3411428c2c6df2762ea11cc11c312abed415d3f3667eb6884
- MD5 4cb2e1b9294ddae1bf7dcaaf42b365d1
- SHA1 a225f53a8403d9b73d77bcbb075194520cce5a14
- SHA512 46cf4abf9121c865c725ca159df71066e0662595915d653914e4ec047f94e2ab3823f85c9e0e0c1311304c460c90224bd3141da62091c733dcaa5dccf64c04bb
- SSDEEP 24576:VD8B+KpPexB6mqwktXUcAVEaFQXhL0porIqo+Frzba:WKkmlktXUcAVEDhQporIqo+Frzba
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\OSM\libeay32.dll
- Size 1.3MB
- SHA256 a8124500cae0aba3411428c2c6df2762ea11cc11c312abed415d3f3667eb6884
- MD5 4cb2e1b9294ddae1bf7dcaaf42b365d1
- SHA1 a225f53a8403d9b73d77bcbb075194520cce5a14
- SHA512 46cf4abf9121c865c725ca159df71066e0662595915d653914e4ec047f94e2ab3823f85c9e0e0c1311304c460c90224bd3141da62091c733dcaa5dccf64c04bb
- SSDEEP 24576:VD8B+KpPexB6mqwktXUcAVEaFQXhL0porIqo+Frzba:WKkmlktXUcAVEDhQporIqo+Frzba
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\OSM\libeay32.dll
- Size 1.3MB
- SHA256 a8124500cae0aba3411428c2c6df2762ea11cc11c312abed415d3f3667eb6884
- MD5 4cb2e1b9294ddae1bf7dcaaf42b365d1
- SHA1 a225f53a8403d9b73d77bcbb075194520cce5a14
- SHA512 46cf4abf9121c865c725ca159df71066e0662595915d653914e4ec047f94e2ab3823f85c9e0e0c1311304c460c90224bd3141da62091c733dcaa5dccf64c04bb
- SSDEEP 24576:VD8B+KpPexB6mqwktXUcAVEaFQXhL0porIqo+Frzba:WKkmlktXUcAVEDhQporIqo+Frzba
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\OSM\osmserv.exe
- Size 11.2MB
- SHA256 87846d788c3a189eed07822136e23d63413c4da216a08e1ea0e1cfadb54093fd
- MD5 472741c5c56e6bc0abda9e34615f3e6d
- SHA1 93f34ab3e7787ac577837904c3a4eb6374c25aaa
- SHA512 437bf378acc09141c2f41f63d5b3afd2b17e4f51b88d8ff5a5c306cc85ad0dcb57dc5c8474b64f40b070530aac93b94fa46c0d0b8550d1027e8459d76b05d89e
- SSDEEP 98304:R6OwlI2RKvm132+y6gp70DNGyTub+62hkYePy45PZGXIe+3ZYOx5n4tM:/6fRKvm13TyF0DNwzPZGb+Jvx5nwM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\OSM\osmserv.exe
- Size 11.2MB
- SHA256 87846d788c3a189eed07822136e23d63413c4da216a08e1ea0e1cfadb54093fd
- MD5 472741c5c56e6bc0abda9e34615f3e6d
- SHA1 93f34ab3e7787ac577837904c3a4eb6374c25aaa
- SHA512 437bf378acc09141c2f41f63d5b3afd2b17e4f51b88d8ff5a5c306cc85ad0dcb57dc5c8474b64f40b070530aac93b94fa46c0d0b8550d1027e8459d76b05d89e
- SSDEEP 98304:R6OwlI2RKvm132+y6gp70DNGyTub+62hkYePy45PZGXIe+3ZYOx5n4tM:/6fRKvm13TyF0DNwzPZGb+Jvx5nwM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\OSM\osmserv.exe
- Size 11.2MB
- SHA256 87846d788c3a189eed07822136e23d63413c4da216a08e1ea0e1cfadb54093fd
- MD5 472741c5c56e6bc0abda9e34615f3e6d
- SHA1 93f34ab3e7787ac577837904c3a4eb6374c25aaa
- SHA512 437bf378acc09141c2f41f63d5b3afd2b17e4f51b88d8ff5a5c306cc85ad0dcb57dc5c8474b64f40b070530aac93b94fa46c0d0b8550d1027e8459d76b05d89e
- SSDEEP 98304:R6OwlI2RKvm132+y6gp70DNGyTub+62hkYePy45PZGXIe+3ZYOx5n4tM:/6fRKvm13TyF0DNwzPZGb+Jvx5nwM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\OSM\osmserv.exe
- Size 11.2MB
- SHA256 87846d788c3a189eed07822136e23d63413c4da216a08e1ea0e1cfadb54093fd
- MD5 472741c5c56e6bc0abda9e34615f3e6d
- SHA1 93f34ab3e7787ac577837904c3a4eb6374c25aaa
- SHA512 437bf378acc09141c2f41f63d5b3afd2b17e4f51b88d8ff5a5c306cc85ad0dcb57dc5c8474b64f40b070530aac93b94fa46c0d0b8550d1027e8459d76b05d89e
- SSDEEP 98304:R6OwlI2RKvm132+y6gp70DNGyTub+62hkYePy45PZGXIe+3ZYOx5n4tM:/6fRKvm13TyF0DNwzPZGb+Jvx5nwM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\OSM\ssleay32.dll
- Size 337KB
- SHA256 1f4b3efc919af1106f348662ee9ad95ab019058ff502e3d68e1b5f7abff91b56
- MD5 5c268ca919854fc22d85f916d102ee7f
- SHA1 0957cf86e0334673eb45945985b5c033b412be0e
- SHA512 76d0abad1d7d0856ec1b8e598b05a2a6eece220ea39d74e7f6278a4219e22c75b7f618160ce41810daa57d5d4d534afd78f5cc1bd6de927dbb6a551aca2f8310
- SSDEEP 6144:8EXfWSXFKIsrpivdM+kPsmWak8dfthPDP0wrE90k7DUT/NaDB7JlwScihgbX5/GU:8EXfWSVKIsrpivdM+msmWak8dfnPDPPz
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\OSM\ssleay32.dll
- Size 337KB
- SHA256 1f4b3efc919af1106f348662ee9ad95ab019058ff502e3d68e1b5f7abff91b56
- MD5 5c268ca919854fc22d85f916d102ee7f
- SHA1 0957cf86e0334673eb45945985b5c033b412be0e
- SHA512 76d0abad1d7d0856ec1b8e598b05a2a6eece220ea39d74e7f6278a4219e22c75b7f618160ce41810daa57d5d4d534afd78f5cc1bd6de927dbb6a551aca2f8310
- SSDEEP 6144:8EXfWSXFKIsrpivdM+kPsmWak8dfthPDP0wrE90k7DUT/NaDB7JlwScihgbX5/GU:8EXfWSVKIsrpivdM+msmWak8dfnPDPPz
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\OSM\ssleay32.dll
- Size 337KB
- SHA256 1f4b3efc919af1106f348662ee9ad95ab019058ff502e3d68e1b5f7abff91b56
- MD5 5c268ca919854fc22d85f916d102ee7f
- SHA1 0957cf86e0334673eb45945985b5c033b412be0e
- SHA512 76d0abad1d7d0856ec1b8e598b05a2a6eece220ea39d74e7f6278a4219e22c75b7f618160ce41810daa57d5d4d534afd78f5cc1bd6de927dbb6a551aca2f8310
- SSDEEP 6144:8EXfWSXFKIsrpivdM+kPsmWak8dfthPDP0wrE90k7DUT/NaDB7JlwScihgbX5/GU:8EXfWSVKIsrpivdM+msmWak8dfnPDPPz
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Program Files\OSM\ssleay32.dll
- Size 337KB
- SHA256 1f4b3efc919af1106f348662ee9ad95ab019058ff502e3d68e1b5f7abff91b56
- MD5 5c268ca919854fc22d85f916d102ee7f
- SHA1 0957cf86e0334673eb45945985b5c033b412be0e
- SHA512 76d0abad1d7d0856ec1b8e598b05a2a6eece220ea39d74e7f6278a4219e22c75b7f618160ce41810daa57d5d4d534afd78f5cc1bd6de927dbb6a551aca2f8310
- SSDEEP 6144:8EXfWSXFKIsrpivdM+kPsmWak8dfthPDP0wrE90k7DUT/NaDB7JlwScihgbX5/GU:8EXfWSVKIsrpivdM+msmWak8dfnPDPPz
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Log360.xml
- Size 1KB
- SHA256 1235422a8be537021b5688cd129b60fc145f33af7c46e35ba2b59e77cd48352d
- MD5 19bee630b0262c8cfaa3352c6bc3cbc7
- SHA1 cbf015af4909c920af7268430e757015cb5d1d26
- SHA512 65e7db3dffa067641149e2556a140eabc14edeb13ae132754f292d1a3f484df45facbf16722cefd9cc958a1f7026a310b41755552a10438984a61a6772fb3d1f
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\nsr7F96.tmp\NSISList.dll
- Size 105KB
- SHA256 df3621f83e9d11be45e0e617b899c4ab0241f60ed56494e892dc449482058402
- MD5 4b0617493f32b2b5fe5e838eeb885819
- SHA1 336e84380420a9caaa9c12af7c8e530135e63c57
- SHA512 5c50cf97cd9a6c699ec7928a08f77f4eaa68105e87a974432e39b637f926f0df8a95ec19bd63465fc438a4ef6349398938bc8d7651de125d13ccab89d1d49143
- SSDEEP 3072:NIgAGTHvtyzvUnB26s2oZtX0Uzi/t6zhy9:ygAuvtRno30V/t6z
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\nsr7F96.tmp\NSISList.dll
- Size 105KB
- SHA256 df3621f83e9d11be45e0e617b899c4ab0241f60ed56494e892dc449482058402
- MD5 4b0617493f32b2b5fe5e838eeb885819
- SHA1 336e84380420a9caaa9c12af7c8e530135e63c57
- SHA512 5c50cf97cd9a6c699ec7928a08f77f4eaa68105e87a974432e39b637f926f0df8a95ec19bd63465fc438a4ef6349398938bc8d7651de125d13ccab89d1d49143
- SSDEEP 3072:NIgAGTHvtyzvUnB26s2oZtX0Uzi/t6zhy9:ygAuvtRno30V/t6z
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\nsr7F96.tmp\System.dll
- Size 12KB
- SHA256 6950991102462d84fdc0e3b0ae30c95af8c192f77ce3d78e8d54e6b22f7c09ba
- MD5 8cf2ac271d7679b1d68eefc1ae0c5618
- SHA1 7cc1caaa747ee16dc894a600a4256f64fa65a9b8
- SHA512 ce828fb9ecd7655cc4c974f78f209d3326ba71ced60171a45a437fc3fff3bd0d69a0997adaca29265c7b5419bdea2b17f8cc8ceae1b8ce6b22b7ed9120bb5ad3
- SSDEEP 192:BenY0qWTlt70IAj/lQ0sEWc/wtYbBH2aDybC7y+XB9IwL:B8+Qlt70Fj/lQRY/9VjjlL
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\nsr7F96.tmp\nsExec.dll
- Size 7KB
- SHA256 1f18f4126124b0551f3dbcd0fec7f34026f930ca509f04435657cedc32ae8c47
- MD5 f27689c513e7d12c7c974d5f8ef710d6
- SHA1 e305f2a2898d765a64c82c449dfb528665b4a892
- SHA512 734e9f3989ee47a86bee16838df7a09353c7fe085a09d77e70d281b21c5477b0b061616e72e8ac8fcb3dda1df0d5152f54dcc4c5a77f90fbf0f857557bf02fbc
- SSDEEP 96:JpmkmwmHDPVhklfSoRPB+YSvWvZckH69MSz00vQFHhAVvSGYuHnUNy2DCP:J+PVhYfSokvW2CsQFBAVaGdHnUNR
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\nsr7F96.tmp\registry.dll
- Size 24KB
- SHA256 0b25b20f26de5d5bd795f934c70447112b4981343fcb2dfab3374a4018d28c2d
- MD5 2b7007ed0262ca02ef69d8990815cbeb
- SHA1 2eabe4f755213666dbbbde024a5235ddde02b47f
- SHA512 aa75ee59ca0b8530eb7298b74e5f334ae9d14129f603b285a3170b82103cfdcc175af8185317e6207142517769e69a24b34fcdf0f58ed50a4960cbe8c22a0aca
- SSDEEP 384:W2mvyNjH3rPnAZ4wu2QbnC7qB7PnrvScaeYA4CIDEge/QqL2AQ:/75w/OfrzB4CUxuQfA
- MD5 SHA1 SHA512 SSDEEP