Resubmissions
10-04-2024 02:55
240410-dektcsff5x 1010-04-2024 02:54
240410-dd6z7scc89 1010-04-2024 02:54
240410-dd6pfacc88 1010-04-2024 02:54
240410-dd53xacc87 1009-09-2023 16:01
230909-tgqqdscd3z 7Analysis
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max time kernel
1566s -
max time network
1570s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
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submitted
10-04-2024 02:55
General
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Target
dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe
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Size
203KB
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MD5
661cdb95fe5810f365ddb936ea8f3432
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SHA1
6210c0691ee20e61dc9a9da1a371d561cd850774
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SHA256
dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236a
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SHA512
aa25009dfbddfb300c14ab65c9eeb68aa785a54d40fa28a684275b9f506cc6fd337842cf42c54bcff79018241c9a0ac606ad4ebf614a2a355aed7e6dbe70c41d
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SSDEEP
6144:8N0J0dLFzW/wKWsBGKqkv07bKXZSgsBuQdwLhXC1:8NDpzGAsgL+ZSwQdwLhXC1
Malware Config
Signatures
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Detect Gurcu Stealer V3 payload 5 IoCs
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Detect ZGRat V1 5 IoCs
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Gurcu, WhiteSnake
Gurcu is a malware stealer written in C#.
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ZGRat
ZGRat is remote access trojan written in C#.
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Deletes itself 1 IoCs
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Executes dropped EXE 2 IoCs
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Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Modifies system certificate store 2 TTPs 6 IoCs
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Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of WriteProcessMemory 24 IoCs
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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.
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe"C:\Users\Admin\AppData\Local\Temp\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C chcp 65001 && ping 127.0.0.1 && schtasks /create /tn "dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe" /rl HIGHEST /f && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe" &&START "" "C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe"2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\chcp.comchcp 650013⤵
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C:\Windows\system32\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
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C:\Windows\system32\schtasks.exeschtasks /create /tn "dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC" /sc MINUTE /tr "C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe"C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2564 -s 31204⤵
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C:\Windows\system32\taskeng.exetaskeng.exe {53664CBE-A13D-490B-8DC5-5F6486DF4DF2} S-1-5-21-1658372521-4246568289-2509113762-1000:PIRBKNPS\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exeC:\Users\Admin\AppData\Local\EsetSecurity\dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236aexe_JC.exe2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2152 -s 30803⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
68KB
MD529f65ba8e88c063813cc50a4ea544e93
SHA105a7040d5c127e68c25d81cc51271ffb8bef3568
SHA2561ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa
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Filesize
344B
MD5b90d68b786d2a700165d0e3fb7cb18df
SHA1d4641eac9b788ab252980960169babc9be07e7fc
SHA256b7a8a09e190cd93fc642f430a40afdd02de8e5fa19de8e493b3a73235c2be053
SHA5124651457bdad06d4ddf16e4ee9099a0395b963b54fceee9cebb5fe90a44f984ddf4da96db99dc145774213ecef7b734291102c8a60fbec880e00486719881dabf
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Filesize
344B
MD599723094cd6d5fae7750092f75190604
SHA1272493018dddd6e3f754ff2c7e63d4051c7492b7
SHA256fafdd21ac21a3fbdf5bcbb3bc7b72a03178a2da320cc3e6ed61abab9a828d97d
SHA5121236df16e38b08ef2572499b19e7f22799c2cd0ee327c4ca1fe3997479f53d64cdd00bba20786d93e3c5c66bfe44cc382539fa63d2519a5428473e51bb321a09
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Filesize
4B
MD5287e041302f34b11ddfb57afc8048cd8
SHA1f244914c4a922b638f68af26f75213391cffc777
SHA256100d3edd36255808489962688b1a66f08d6d49e398cd57c7f4f44656b3ea1897
SHA512712b7756167e7935b0fcd3f98e7186c50615ad00bacd08e98a6c3ccc13c4f174e47e13883d5054adf6d9a0d047364249eb729c096ab63a4246e54347607ad4c7
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Filesize
203KB
MD5661cdb95fe5810f365ddb936ea8f3432
SHA16210c0691ee20e61dc9a9da1a371d561cd850774
SHA256dba803bf0917907fad2aa9163b78a20ba8ba2b9a79cf105dede3a5acd821236a
SHA512aa25009dfbddfb300c14ab65c9eeb68aa785a54d40fa28a684275b9f506cc6fd337842cf42c54bcff79018241c9a0ac606ad4ebf614a2a355aed7e6dbe70c41d
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Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d
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Filesize
177KB
MD5435a9ac180383f9fa094131b173a2f7b
SHA176944ea657a9db94f9a4bef38f88c46ed4166983
SHA25667dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
SHA5121a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a
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Filesize
82B
MD51d2c0986ba3c3af924ad4b8776a45190
SHA1e4199810598c592fb4304eb37cf90d2ce2065a11
SHA2568f8cc850ea7e227ba100ad943c4c9000857e39d66a0aa6a245f599e6868d04c2
SHA512275f4de2999bc947be2a179aab2ed6e33d7591d3464d3ba43d3ca1b6fc0ada3aae2090f39dc3620bfcfa57824e26aba7b401145137f87115bbd4c3589a291524
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Filesize
9.9MB
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Filesize
224KB
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Filesize
512KB
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Filesize
9.9MB
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Filesize
9.9MB
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Filesize
9.9MB
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Filesize
512KB
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Filesize
9.9MB
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Filesize
512KB
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Filesize
9.9MB
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Filesize
512KB
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Filesize
224KB