strrat | 78c13c7c14ba3068053b7749c2671ba76cce489e3dbd310bc58641adf2e2fbe8

Analysis

max time kernel
132s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
06/06/2023, 13:41

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General

Target
Doc-PO.161015-AGS_510160523.js
Size 364KB
Sample230606-qy4f2aed8x
SHA256 0d6dc81831f9dbc108a2bf9cb913678e392d1e2c22aad3cd900e59bc3c3a2e62
MD5 22a10561df6d4e94ee66a05c2460c1c2
SHA1 e5956d08f7f2ead17df83a537fb436789d086bdf
SHA512 f0ea2cd4ec18b1308bef68705112910efceeb2e301ea4ef1857b0774fabfc01ac5bb55931764504a84248ca6eee65c5f84e81679deeff83cca81949edf6fa1a3
SSDEEP 6144:Mo5w5IFL7veLmHXaWQ5jhHpw3ciNh+bmy7mN8igz1fH9FjB55f0+lWsEoymYS8Ym:TeS3aphOHtz6Tht/ym9CBmVold
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

strrat persistence stealer trojan

Malware Config

Signatures

STRRAT
STRRAT is a remote access tool than can steal credentials and log keystrokes.
trojan stealer strrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hrjuecch.txt	java.exe

Loads dropped DLL 1 IoCs

pid	Process
776	java.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hrjuecch = "\"C:\\Users\\Admin\\AppData\\Roaming\\hrjuecch.txt\""	java.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hrjuecch = "\"C:\\Users\\Admin\\AppData\\Roaming\\hrjuecch.txt\""	java.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1420	schtasks.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 3808	4824	wscript.exe	85
PID 4824 wrote to memory of 3808	4824	wscript.exe	85
PID 3808 wrote to memory of 4412	3808	javaw.exe	87
PID 3808 wrote to memory of 4412	3808	javaw.exe	87
PID 4412 wrote to memory of 4736	4412	java.exe	90
PID 4412 wrote to memory of 4736	4412	java.exe	90
PID 4412 wrote to memory of 776	4412	java.exe	89
PID 4412 wrote to memory of 776	4412	java.exe	89
PID 4736 wrote to memory of 1420	4736	cmd.exe	93
PID 4736 wrote to memory of 1420	4736	cmd.exe	93

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Doc-PO.161015-AGS_510160523.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4824
- C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe
  "C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\hrjuecch.txt"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3808
- - C:\Program Files\Java\jre1.8.0_66\bin\java.exe
    "C:\Program Files\Java\jre1.8.0_66\bin\java.exe" -jar "C:\Users\Admin\hrjuecch.txt"
    3⤵
    - Drops startup file
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:4412
  - - C:\Program Files\Java\jre1.8.0_66\bin\java.exe
      "C:\Program Files\Java\jre1.8.0_66\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\hrjuecch.txt"
      4⤵
      Loads dropped DLL
      PID:776
  - - C:\Windows\SYSTEM32\cmd.exe
      cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\hrjuecch.txt"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4736
    - - C:\Windows\system32\schtasks.exe
        
        schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\hrjuecch.txt"
        5⤵
        Creates scheduled task(s)
        
        PID:1420

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

90737d32e3aba4b.timestamp

Path C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp
Size 50B
SHA256 73ada48cdc3d797fdacb5a8a79dde6c3e5964a2831a543e1cd3e51a7fe57a5de
MD5 c8d78ed26d08a89061fcae6e4b08523f
SHA1 d668feeef0b34701277892e8b9321aeb457dcd69
SHA512 126aa7e07d092a0801065d8147bbc9bb4eb915ae64ef897f152c9acda1226192ce2fda05176c7419a8b9b8563ff0ee8e5e1f73055710de46f61f646cffcd2ca3
MD5 SHA1 SHA512

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90737d32e3aba4b.timestamp

Path C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp
Size 50B
SHA256 7c962a7bfab6bd3add8612c9a7159f5d104e6677068aa71e19a0be8204272ebd
MD5 7e091880d4653e0b3a994ac651c18076
SHA1 a99472510a147d1da96a045e8e1c5d94e06d4aad
SHA512 b3af86cbb20d5fcc8609192dbecdc16ce83216d75544afdf220d4688fef5d09c7aeea566ef8443623e1919cc04907baa5823cc8bbc65a328b8c955db0e9934a7
MD5 SHA1 SHA512

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jna3820357585526542545.dll

Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna3820357585526542545.dll
Size 241KB
SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
MD5 e02979ecd43bcc9061eb2b494ab5af50
SHA1 3122ac0e751660f646c73b10c4f79685aa65c545
SHA512 1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372
SSDEEP 6144:YW2uuBVCg2ZF0xk5udHB7EkAgEEz2Lh2LDh+MDWHNaL7yyubjmiy9NBW:YW2uAC9sVEZL0vdnz
MD5 SHA1 SHA512 SSDEEP

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83aa4cc77f591dfc2374580bbd95f6ba_3c2ddb0c-d60d-4dbd-84ce-ab7caca42e67

Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2548970870-3691742953-3895070203-1000\83aa4cc77f591dfc2374580bbd95f6ba_3c2ddb0c-d60d-4dbd-84ce-ab7caca42e67
Size 45B
SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
MD5 c8366ae350e7019aefc9d1e6e6a498c6
SHA1 5731d8a3e6568a5f2dfbbc87e3db9637df280b61
SHA512 33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd
MD5 SHA1 SHA512

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hrjuecch.txt

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hrjuecch.txt
Size 164KB
SHA256 e8efe1b5399082b582ecb0ce4074c5cbc080190eb9cf526bb18e3a12d8ae0166
MD5 6ba0c5ca3a5498eadb52bc76541f92d6
SHA1 e61c427e6968589cc40064602600d84843e2c764
SHA512 3a42af61354c7d7cc68a07e66d33550f84ff1800b9838f2a412932fdb6f5ed8d35e7ef21f1a0dcf37b5008bd74214d7a687cfc10b9bc5aad63d5ee95abb5cf5d
SSDEEP 3072:gwyNM3OY8mfwEA9w6XEu9T3rk1sOwMl0/OM4rIxsFoK0x6NBQ5hkk:grUf7lu9Tw1sOwo01aF8x6Dyhj
MD5 SHA1 SHA512 SSDEEP

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hrjuecch.txt

Path C:\Users\Admin\AppData\Roaming\hrjuecch.txt
Size 164KB
SHA256 e8efe1b5399082b582ecb0ce4074c5cbc080190eb9cf526bb18e3a12d8ae0166
MD5 6ba0c5ca3a5498eadb52bc76541f92d6
SHA1 e61c427e6968589cc40064602600d84843e2c764
SHA512 3a42af61354c7d7cc68a07e66d33550f84ff1800b9838f2a412932fdb6f5ed8d35e7ef21f1a0dcf37b5008bd74214d7a687cfc10b9bc5aad63d5ee95abb5cf5d
SSDEEP 3072:gwyNM3OY8mfwEA9w6XEu9T3rk1sOwMl0/OM4rIxsFoK0x6NBQ5hkk:grUf7lu9Tw1sOwo01aF8x6Dyhj
MD5 SHA1 SHA512 SSDEEP

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hrjuecch.txt

Path C:\Users\Admin\AppData\Roaming\hrjuecch.txt
Size 164KB
SHA256 e8efe1b5399082b582ecb0ce4074c5cbc080190eb9cf526bb18e3a12d8ae0166
MD5 6ba0c5ca3a5498eadb52bc76541f92d6
SHA1 e61c427e6968589cc40064602600d84843e2c764
SHA512 3a42af61354c7d7cc68a07e66d33550f84ff1800b9838f2a412932fdb6f5ed8d35e7ef21f1a0dcf37b5008bd74214d7a687cfc10b9bc5aad63d5ee95abb5cf5d
SSDEEP 3072:gwyNM3OY8mfwEA9w6XEu9T3rk1sOwMl0/OM4rIxsFoK0x6NBQ5hkk:grUf7lu9Tw1sOwo01aF8x6Dyhj
MD5 SHA1 SHA512 SSDEEP

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jna-5.5.0.jar

Path C:\Users\Admin\AppData\Roaming\lib\jna-5.5.0.jar
Size 1.4MB
SHA256 b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e
MD5 acfb5b5fd9ee10bf69497792fd469f85
SHA1 0e0845217c4907822403912ad6828d8e0b256208
SHA512 e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa
SSDEEP 24576:BggLnybolJdaW+864NkqCUer8N7sSFOaj5lWOEMIKk6idJRWPTgzq3bICEz2lFO:BTnybo9aW+L5qCUO0xsiMPZrJgPLLIO6
MD5 SHA1 SHA512 SSDEEP

Submit Download

jna-platform-5.5.0.jar

Path C:\Users\Admin\AppData\Roaming\lib\jna-platform-5.5.0.jar
Size 2.6MB
SHA256 24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5
MD5 2f4a99c2758e72ee2b59a73586a2322f
SHA1 af38e7c4d0fc73c23ecd785443705bfdee5b90bf
SHA512 b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494
SSDEEP 24576:DyciOooDbK7Yw1J75n4BP/NtK2ov3mhDR6:3iOLDOZJ75nwtK2ovWh8
MD5 SHA1 SHA512 SSDEEP

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sqlite-jdbc-3.14.2.1.jar

Path C:\Users\Admin\AppData\Roaming\lib\sqlite-jdbc-3.14.2.1.jar
Size 4.1MB
SHA256 2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491
MD5 b33387e15ab150a7bf560abdc73c3bec
SHA1 66b8075784131f578ef893fd7674273f709b9a4c
SHA512 25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279
SSDEEP 98304:czJoX0izQbrabWo2MxgErRYxFOY8IsFWyTIiTIzMpca:cJoXHQKW9MxRr8wZZsikzMaa
MD5 SHA1 SHA512 SSDEEP

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system-hook-3.5.jar

Path C:\Users\Admin\AppData\Roaming\lib\system-hook-3.5.jar
Size 772KB
SHA256 2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609
MD5 e1aa38a1e78a76a6de73efae136cdb3a
SHA1 c463da71871f780b2e2e5dba115d43953b537daf
SHA512 fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d
SSDEEP 24576:IhCFW8WXvOsWW9XGmvcVfkfTnzrLvadKPpv:IhCYWstW202t
MD5 SHA1 SHA512 SSDEEP

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hrjuecch.txt

Path C:\Users\Admin\hrjuecch.txt
Size 164KB
SHA256 e8efe1b5399082b582ecb0ce4074c5cbc080190eb9cf526bb18e3a12d8ae0166
MD5 6ba0c5ca3a5498eadb52bc76541f92d6
SHA1 e61c427e6968589cc40064602600d84843e2c764
SHA512 3a42af61354c7d7cc68a07e66d33550f84ff1800b9838f2a412932fdb6f5ed8d35e7ef21f1a0dcf37b5008bd74214d7a687cfc10b9bc5aad63d5ee95abb5cf5d
SSDEEP 3072:gwyNM3OY8mfwEA9w6XEu9T3rk1sOwMl0/OM4rIxsFoK0x6NBQ5hkk:grUf7lu9Tw1sOwo01aF8x6Dyhj
MD5 SHA1 SHA512 SSDEEP

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jna-5.5.0.jar

Path C:\Users\Admin\lib\jna-5.5.0.jar
Size 1.4MB
SHA256 b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e
MD5 acfb5b5fd9ee10bf69497792fd469f85
SHA1 0e0845217c4907822403912ad6828d8e0b256208
SHA512 e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa
SSDEEP 24576:BggLnybolJdaW+864NkqCUer8N7sSFOaj5lWOEMIKk6idJRWPTgzq3bICEz2lFO:BTnybo9aW+L5qCUO0xsiMPZrJgPLLIO6
MD5 SHA1 SHA512 SSDEEP

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jna-platform-5.5.0.jar

Path C:\Users\Admin\lib\jna-platform-5.5.0.jar
Size 2.6MB
SHA256 24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5
MD5 2f4a99c2758e72ee2b59a73586a2322f
SHA1 af38e7c4d0fc73c23ecd785443705bfdee5b90bf
SHA512 b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494
SSDEEP 24576:DyciOooDbK7Yw1J75n4BP/NtK2ov3mhDR6:3iOLDOZJ75nwtK2ovWh8
MD5 SHA1 SHA512 SSDEEP

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sqlite-jdbc-3.14.2.1.jar

Path C:\Users\Admin\lib\sqlite-jdbc-3.14.2.1.jar
Size 4.1MB
SHA256 2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491
MD5 b33387e15ab150a7bf560abdc73c3bec
SHA1 66b8075784131f578ef893fd7674273f709b9a4c
SHA512 25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279
SSDEEP 98304:czJoX0izQbrabWo2MxgErRYxFOY8IsFWyTIiTIzMpca:cJoXHQKW9MxRr8wZZsikzMaa
MD5 SHA1 SHA512 SSDEEP

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system-hook-3.5.jar

Path C:\Users\Admin\lib\system-hook-3.5.jar
Size 772KB
SHA256 2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609
MD5 e1aa38a1e78a76a6de73efae136cdb3a
SHA1 c463da71871f780b2e2e5dba115d43953b537daf
SHA512 fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d
SSDEEP 24576:IhCFW8WXvOsWW9XGmvcVfkfTnzrLvadKPpv:IhCYWstW202t
MD5 SHA1 SHA512 SSDEEP

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memory/776-256-0x00000000028A0000-0x00000000028A1000-memory.dmp

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memory/3808-194-0x0000000000F80000-0x0000000000F81000-memory.dmp

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memory/3808-198-0x0000000000F80000-0x0000000000F81000-memory.dmp

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memory/3808-197-0x0000000000F80000-0x0000000000F81000-memory.dmp

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memory/3808-196-0x0000000000F80000-0x0000000000F81000-memory.dmp

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memory/3808-209-0x0000000000F80000-0x0000000000F81000-memory.dmp

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memory/3808-182-0x0000000000F80000-0x0000000000F81000-memory.dmp

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memory/3808-181-0x0000000000F80000-0x0000000000F81000-memory.dmp

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memory/3808-178-0x0000000000F80000-0x0000000000F81000-memory.dmp

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memory/3808-200-0x0000000000F80000-0x0000000000F81000-memory.dmp

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memory/3808-175-0x0000000000F80000-0x0000000000F81000-memory.dmp

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memory/3808-157-0x0000000000F80000-0x0000000000F81000-memory.dmp

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memory/4412-226-0x0000000001250000-0x0000000001251000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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