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Analysis
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max time kernel
135s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
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submitted
02/05/2023, 07:10 UTC
General
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Target
Halkbank_Ekstre_20230501_085144_348375,PDF.exe
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Size
581KB
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MD5
4c92dfdb8014a72e00b246324b7eab7e
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SHA1
545b35416b76f8c2141238a34807d50fb4135037
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SHA256
bc2c9a0032b4118b2d862043c73ebbc2627c31f8fb8afb7bd28b8a27be225800
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SHA512
565bbd067ba5558e80d23b9815e375e505ecba95870762b3234062d989c94c1be07dd73a51c502fbaec77f1e05badc1402d14bd76e553540d3fe5349a6ffefac
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SSDEEP
12288:UuRSSGReozVI8t0gPOkqdYGkUWeDP1n5VNeVSwAgfSL5:bozV1t0TkRXenOK
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot6277254729:AAH9hHYZNSDZac0nNvgmchkZF8WVRKU5dJ0/
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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 3 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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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Suspicious behavior: EnumeratesProcesses 6 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of WriteProcessMemory 14 IoCs
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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\Halkbank_Ekstre_20230501_085144_348375,PDF.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230501_085144_348375,PDF.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SaaqscsRqypzCi.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SaaqscsRqypzCi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6B4D.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230501_085144_348375,PDF.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230501_085144_348375,PDF.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
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DNS133.211.185.52.in-addr.arpaRemote address:8.8.8.8:53Request133.211.185.52.in-addr.arpaIN PTRResponse -
DNS20.160.190.20.in-addr.arpaRemote address:8.8.8.8:53Request20.160.190.20.in-addr.arpaIN PTRResponse
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DNS95.221.229.192.in-addr.arpaRemote address:8.8.8.8:53Request95.221.229.192.in-addr.arpaIN PTRResponse
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DNS217.106.137.52.in-addr.arpaRemote address:8.8.8.8:53Request217.106.137.52.in-addr.arpaIN PTRResponse
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DNS63.13.109.52.in-addr.arpaRemote address:8.8.8.8:53Request63.13.109.52.in-addr.arpaIN PTRResponse
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93.184.220.29:80
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40.125.122.176:443
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20.189.173.12:443
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8.238.20.126:80 -
173.223.113.164:443
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173.223.113.131:80
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131.253.33.203:80
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40.125.122.176:443
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209.197.3.8:80
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40.125.122.176:443
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40.125.122.176:443
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40.125.122.176:443
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40.125.122.176:443
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8.8.8.8:53133.211.185.52.in-addr.arpadns
DNS Request
133.211.185.52.in-addr.arpa
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8.8.8.8:5320.160.190.20.in-addr.arpadns
DNS Request
20.160.190.20.in-addr.arpa
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8.8.8.8:5395.221.229.192.in-addr.arpadns
DNS Request
95.221.229.192.in-addr.arpa
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8.8.8.8:53217.106.137.52.in-addr.arpadns
DNS Request
217.106.137.52.in-addr.arpa
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8.8.8.8:5363.13.109.52.in-addr.arpadns
DNS Request
63.13.109.52.in-addr.arpa
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD50a7319246f99a931fefd0e88a3434762
SHA14bbace82137c14494edda51b051beead0835b38b
SHA256e9f9542780ad2a5bc9b09e48720569cbba6df6b34f3d9a6709d8d5996298646a
SHA51297dbc08f485ad1e4cfdacd9f3baeb5ac372207e503779e031159863279b583ac2fc77685c3f31921b2849f8a9c4a0a235e82c634f262716be073d929af7a7e96
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Filesize
192KB
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Filesize
64KB
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Filesize
1.8MB
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Filesize
320KB
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Filesize
64KB
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Filesize
408KB
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Filesize
120KB
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Filesize
304KB
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Filesize
64KB
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Filesize
6.2MB
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Filesize
32KB
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Filesize
136KB
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Filesize
216KB
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Filesize
408KB
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Filesize
104KB
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Filesize
56KB
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Filesize
64KB
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Filesize
600KB
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Filesize
200KB
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Filesize
64KB
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Filesize
120KB
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Filesize
64KB
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Filesize
6.5MB
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Filesize
40KB
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Filesize
104KB
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Filesize
40KB
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Filesize
64KB
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Filesize
624KB
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Filesize
584KB
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Filesize
5.6MB
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Filesize
608KB
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Filesize
64KB