Analysis
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max time kernel
152s -
max time network
177s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
11/10/2022, 08:47
Static task
static1
Behavioral task
behavioral1
Sample
Purchase Order No.002548.pdf.js
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
Purchase Order No.002548.pdf.js
Resource
win10v2004-20220812-en
General
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Target
Purchase Order No.002548.pdf.js
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Size
386KB
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MD5
8f1ed7462dc08d0897aa79afcf256925
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SHA1
cbd38c7cb35f8d5f0afd542dc939dad41806f717
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SHA256
6297ad7d2e748eb48b9572a3702188eeb569aad21afc52e0aa813df2294683cb
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SHA512
68cc0ca0c833415d3e75d4147bbbb550975622f773dd92e5120e4c8e8907651932eb0367496d2bb43af1fc5d1b1104587d9710df1b3fccfe98dc54c5acda76ce
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SSDEEP
6144:SX3RPvIgjpK1By+Z7lgwf0wNLrfoPeQhdREF3Tu:ONISifsekEdu
Malware Config
Extracted
Protocol: smtp- Host:
mail.walkerdaly.co.za - Port:
587 - Username:
[email protected] - Password:
0^8CE3Z~WE#4
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Blocklisted process makes network request 6 IoCs
flow pid Process 5 256 wscript.exe 23 256 wscript.exe 39 256 wscript.exe 47 256 wscript.exe 52 256 wscript.exe 53 256 wscript.exe -
Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts DeGrace.exe -
Executes dropped EXE 1 IoCs
pid Process 4560 DeGrace.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation wscript.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HnfkCWUlzy.js wscript.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HnfkCWUlzy.js wscript.exe -
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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DeGrace.exe Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DeGrace.exe Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DeGrace.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 2 IoCs
pid pid_target Process procid_target 5012 4560 WerFault.exe 81 4528 4560 WerFault.exe 81 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4560 DeGrace.exe 4560 DeGrace.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4560 DeGrace.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1840 wrote to memory of 256 1840 wscript.exe 80 PID 1840 wrote to memory of 256 1840 wscript.exe 80 PID 1840 wrote to memory of 4560 1840 wscript.exe 81 PID 1840 wrote to memory of 4560 1840 wscript.exe 81 PID 1840 wrote to memory of 4560 1840 wscript.exe 81 PID 4560 wrote to memory of 5012 4560 DeGrace.exe 91 PID 4560 wrote to memory of 5012 4560 DeGrace.exe 91 PID 4560 wrote to memory of 5012 4560 DeGrace.exe 91 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DeGrace.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DeGrace.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe "C:\Users\Admin\AppData\Local\Temp\Purchase Order No.002548.pdf.js"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1840 -
C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\HnfkCWUlzy.js"2⤵
- Blocklisted process makes network request
- Drops startup file
PID:256
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C:\Users\Admin\AppData\Roaming\DeGrace.exe"C:\Users\Admin\AppData\Roaming\DeGrace.exe"2⤵
- Drops file in Drivers directory
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4560 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4560 -s 19203⤵
- Program crash
PID:5012
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4560 -s 19203⤵
- Program crash
PID:4528
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4560 -ip 45601⤵PID:2524
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
210KB
MD5a7b2ef440655ae44c0647416f94b0cf5
SHA1d2965894cc58ae8ef26360c08c99dcf08b161af1
SHA25651d922caf11a1956e6b46e55649826692b5226412d643c386dacdbcdc89bd34a
SHA512be962aa707f7597014c762ee822b97162e92ed664bcf2e56d266f501b1f1f077a2f9e9bdf8361cf8df8ceb2d53224fc96c5557af258020da863f725f9ebf34f0
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Filesize
210KB
MD5a7b2ef440655ae44c0647416f94b0cf5
SHA1d2965894cc58ae8ef26360c08c99dcf08b161af1
SHA25651d922caf11a1956e6b46e55649826692b5226412d643c386dacdbcdc89bd34a
SHA512be962aa707f7597014c762ee822b97162e92ed664bcf2e56d266f501b1f1f077a2f9e9bdf8361cf8df8ceb2d53224fc96c5557af258020da863f725f9ebf34f0
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Filesize
5KB
MD5c380d34c94785eed466d83b8945f61b5
SHA182ddafdfa6559334bb734fdc38de4b09b3a1d7e0
SHA2569b7dbb2f7e53e0b6b6b0a439162aee7683acd0e3cade06e1050762c319b02474
SHA512955d6fd6f747c6af8b0b3638e73dac65ce5676e66daf1c8c572530ba8a52dcd11d176454c8c5293b06a8d102db93250a764a24034bcc44c0ca50bf3e054b8379