Analysis
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max time kernel
128s -
max time network
123s -
platform
windows10_x64 -
resource
win10-en-20211104 -
submitted
02-12-2021 07:26
Static task
static1
Behavioral task
behavioral1
Sample
PURCHASE ORDER #298767649DF.exe
Resource
win7-en-20211104
Behavioral task
behavioral2
Sample
PURCHASE ORDER #298767649DF.exe
Resource
win10-en-20211104
General
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Target
PURCHASE ORDER #298767649DF.exe
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Size
571KB
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MD5
38b5e64b40b7385e941853fafcca52ed
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SHA1
3500d74b58a12151a541865eb72e54dc97553a8f
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SHA256
0a15fc96322463009c95cafcf720acb2eb9dbee7baffbd1131532891db885a6e
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SHA512
33b99a75e63d5d4497ef6a85e2a9f6cd3248a1110acec2864457b300194acdd582d9da6e932d9abca9265613495bbc753777066d4181462aef08862b89f96d6a
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.dieseltronic.com.pe - Port:
587 - Username:
[email protected] - Password:
Asdiesel2019@?%%%,
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/3724-131-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/3724-132-0x000000000043763E-mapping.dmp family_agenttesla behavioral2/memory/3724-138-0x0000000005250000-0x000000000574E000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
PURCHASE ORDER #298767649DF.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts PURCHASE ORDER #298767649DF.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
Processes:
PURCHASE ORDER #298767649DF.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PURCHASE ORDER #298767649DF.exe Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PURCHASE ORDER #298767649DF.exe Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PURCHASE ORDER #298767649DF.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
PURCHASE ORDER #298767649DF.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe" PURCHASE ORDER #298767649DF.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PURCHASE ORDER #298767649DF.exedescription pid process target process PID 2592 set thread context of 3724 2592 PURCHASE ORDER #298767649DF.exe PURCHASE ORDER #298767649DF.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 3 IoCs
Processes:
PURCHASE ORDER #298767649DF.exePURCHASE ORDER #298767649DF.exepid process 2592 PURCHASE ORDER #298767649DF.exe 3724 PURCHASE ORDER #298767649DF.exe 3724 PURCHASE ORDER #298767649DF.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
PURCHASE ORDER #298767649DF.exePURCHASE ORDER #298767649DF.exedescription pid process Token: SeDebugPrivilege 2592 PURCHASE ORDER #298767649DF.exe Token: SeDebugPrivilege 3724 PURCHASE ORDER #298767649DF.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PURCHASE ORDER #298767649DF.exepid process 3724 PURCHASE ORDER #298767649DF.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
PURCHASE ORDER #298767649DF.exedescription pid process target process PID 2592 wrote to memory of 1536 2592 PURCHASE ORDER #298767649DF.exe schtasks.exe PID 2592 wrote to memory of 1536 2592 PURCHASE ORDER #298767649DF.exe schtasks.exe PID 2592 wrote to memory of 1536 2592 PURCHASE ORDER #298767649DF.exe schtasks.exe PID 2592 wrote to memory of 3724 2592 PURCHASE ORDER #298767649DF.exe PURCHASE ORDER #298767649DF.exe PID 2592 wrote to memory of 3724 2592 PURCHASE ORDER #298767649DF.exe PURCHASE ORDER #298767649DF.exe PID 2592 wrote to memory of 3724 2592 PURCHASE ORDER #298767649DF.exe PURCHASE ORDER #298767649DF.exe PID 2592 wrote to memory of 3724 2592 PURCHASE ORDER #298767649DF.exe PURCHASE ORDER #298767649DF.exe PID 2592 wrote to memory of 3724 2592 PURCHASE ORDER #298767649DF.exe PURCHASE ORDER #298767649DF.exe PID 2592 wrote to memory of 3724 2592 PURCHASE ORDER #298767649DF.exe PURCHASE ORDER #298767649DF.exe PID 2592 wrote to memory of 3724 2592 PURCHASE ORDER #298767649DF.exe PURCHASE ORDER #298767649DF.exe PID 2592 wrote to memory of 3724 2592 PURCHASE ORDER #298767649DF.exe PURCHASE ORDER #298767649DF.exe -
outlook_office_path 1 IoCs
Processes:
PURCHASE ORDER #298767649DF.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PURCHASE ORDER #298767649DF.exe -
outlook_win_path 1 IoCs
Processes:
PURCHASE ORDER #298767649DF.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PURCHASE ORDER #298767649DF.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER #298767649DF.exe"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER #298767649DF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2592 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KVsqXGOgiWC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1FF7.tmp"2⤵
- Creates scheduled task(s)
PID:1536 -
C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER #298767649DF.exe"{path}"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:3724
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PURCHASE ORDER #298767649DF.exe.logMD5
90acfd72f14a512712b1a7380c0faf60
SHA140ba4accb8faa75887e84fb8e38d598dc8cf0f12
SHA25620806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86
SHA51229dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9
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C:\Users\Admin\AppData\Local\Temp\tmp1FF7.tmpMD5
3d06a1db4cae933352cc0fa6153bf19b
SHA1443f4e8fd8b6f409e5c60519f94c1b001dbba093
SHA2569fbf408f610769c3f595a4a359a8fbc9781ae1d51641b0ecedd23b6191cc49a8
SHA512c4e26f67a77aa3c28e56f1960af5f7359c30842a6ce77d26b2d13c1abe594c1feaa19b8eaa6f9e4966de5eb2966cb785d28bf35b354390393572cea8bdcbb2ac
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memory/1536-129-0x0000000000000000-mapping.dmp
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memory/2592-127-0x0000000007E80000-0x0000000007F00000-memory.dmpFilesize
512KB
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memory/2592-122-0x00000000054E0000-0x00000000054E1000-memory.dmpFilesize
4KB
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memory/2592-125-0x00000000056D0000-0x00000000056D1000-memory.dmpFilesize
4KB
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memory/2592-124-0x00000000054E0000-0x00000000059DE000-memory.dmpFilesize
5.0MB
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memory/2592-126-0x00000000056B0000-0x00000000056B5000-memory.dmpFilesize
20KB
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memory/2592-118-0x0000000000B40000-0x0000000000B41000-memory.dmpFilesize
4KB
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memory/2592-128-0x0000000007F00000-0x0000000007F38000-memory.dmpFilesize
224KB
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memory/2592-123-0x00000000053E0000-0x00000000053E1000-memory.dmpFilesize
4KB
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memory/2592-121-0x00000000059E0000-0x00000000059E1000-memory.dmpFilesize
4KB
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memory/2592-120-0x0000000005440000-0x0000000005441000-memory.dmpFilesize
4KB
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memory/3724-132-0x000000000043763E-mapping.dmp
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memory/3724-131-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/3724-138-0x0000000005250000-0x000000000574E000-memory.dmpFilesize
5.0MB
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memory/3724-139-0x00000000053A0000-0x00000000053A1000-memory.dmpFilesize
4KB
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memory/3724-140-0x0000000005F40000-0x0000000005F41000-memory.dmpFilesize
4KB
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memory/3724-143-0x0000000005250000-0x000000000574E000-memory.dmpFilesize
5.0MB