Analysis
-
max time kernel
150s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
23-02-2023 15:13
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20230220-en
General
-
Target
tmp.exe
-
Size
25KB
-
MD5
30b5426ee9183f43fba9a8a6b6b32b97
-
SHA1
d0b8cde6d8c38e294ce6275b0f935677b07d2202
-
SHA256
e18cf6502122b168dac6c932cd89739e313154ee9b73d6ddd692d4ad990aceb0
-
SHA512
adef79c0748b1e8c274f93879c1c068e0d54b88de94fbb01d4d51bd222a6493f8d2cc68f53adab5407bd59249dfa2fdbc8f511bbec3613772591b0ea4d79afaf
-
SSDEEP
96:jFQgbeIBVLyrgoJ/sTfNILBevmXR5MMRWnwLoLEk8LfjNiRB4e3T3ew5tvEzNt:jFhyIaUo/sTfNILwEfdRTLat8LLGTvu
Malware Config
Extracted
purecrypter
http://argentum.com.br/well-known/acme-challenge/k/h/d/g/Pjogwzrhh.bmp
http://argentum.com.br/well-known/acme-challenge/k/h/d/g/Xzcrd.png
Signatures
-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
-
Detects Smokeloader packer 3 IoCs
resource yara_rule behavioral2/memory/2932-162-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2932-164-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2932-166-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader -
PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
-
SmokeLoader
Modular backdoor trojan in use since 2014.
-
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation tmp.exe Key value queried \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation 9E15.exe -
Executes dropped EXE 2 IoCs
pid Process 4420 9E15.exe 1428 9E15.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
-
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 explorer.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 explorer.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 explorer.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 9E15.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 9E15.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 9E15.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nEdENIr = "C:\\Users\\Admin\\AppData\\Roaming\\nEdENIr\\nEdENIr.exe" 9E15.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 28 api.ipify.org 29 api.ipify.org -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4640 set thread context of 2932 4640 tmp.exe 84 PID 4420 set thread context of 1428 4420 9E15.exe 95 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tmp.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tmp.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tmp.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3588 powershell.exe 3588 powershell.exe 2932 tmp.exe 2932 tmp.exe 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3196 Process not Found -
Suspicious behavior: MapViewOfSection 13 IoCs
pid Process 2932 tmp.exe 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found 3196 Process not Found -
Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 4640 tmp.exe Token: SeDebugPrivilege 3588 powershell.exe Token: SeDebugPrivilege 4420 9E15.exe Token: SeDebugPrivilege 4004 powershell.exe Token: SeShutdownPrivilege 3196 Process not Found Token: SeCreatePagefilePrivilege 3196 Process not Found Token: SeDebugPrivilege 1428 9E15.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1428 9E15.exe -
Suspicious use of WriteProcessMemory 44 IoCs
description pid Process procid_target PID 4640 wrote to memory of 3588 4640 tmp.exe 82 PID 4640 wrote to memory of 3588 4640 tmp.exe 82 PID 4640 wrote to memory of 3588 4640 tmp.exe 82 PID 4640 wrote to memory of 2932 4640 tmp.exe 84 PID 4640 wrote to memory of 2932 4640 tmp.exe 84 PID 4640 wrote to memory of 2932 4640 tmp.exe 84 PID 4640 wrote to memory of 2932 4640 tmp.exe 84 PID 4640 wrote to memory of 2932 4640 tmp.exe 84 PID 4640 wrote to memory of 2932 4640 tmp.exe 84 PID 3196 wrote to memory of 4420 3196 Process not Found 86 PID 3196 wrote to memory of 4420 3196 Process not Found 86 PID 3196 wrote to memory of 4420 3196 Process not Found 86 PID 3196 wrote to memory of 2228 3196 Process not Found 87 PID 3196 wrote to memory of 2228 3196 Process not Found 87 PID 3196 wrote to memory of 2228 3196 Process not Found 87 PID 3196 wrote to memory of 2228 3196 Process not Found 87 PID 3196 wrote to memory of 3608 3196 Process not Found 88 PID 3196 wrote to memory of 3608 3196 Process not Found 88 PID 3196 wrote to memory of 3608 3196 Process not Found 88 PID 3196 wrote to memory of 1128 3196 Process not Found 89 PID 3196 wrote to memory of 1128 3196 Process not Found 89 PID 3196 wrote to memory of 1128 3196 Process not Found 89 PID 3196 wrote to memory of 1128 3196 Process not Found 89 PID 4420 wrote to memory of 4004 4420 9E15.exe 90 PID 4420 wrote to memory of 4004 4420 9E15.exe 90 PID 4420 wrote to memory of 4004 4420 9E15.exe 90 PID 3196 wrote to memory of 4832 3196 Process not Found 92 PID 3196 wrote to memory of 4832 3196 Process not Found 92 PID 3196 wrote to memory of 4832 3196 Process not Found 92 PID 3196 wrote to memory of 4552 3196 Process not Found 93 PID 3196 wrote to memory of 4552 3196 Process not Found 93 PID 3196 wrote to memory of 4552 3196 Process not Found 93 PID 3196 wrote to memory of 4552 3196 Process not Found 93 PID 3196 wrote to memory of 3884 3196 Process not Found 94 PID 3196 wrote to memory of 3884 3196 Process not Found 94 PID 3196 wrote to memory of 3884 3196 Process not Found 94 PID 4420 wrote to memory of 1428 4420 9E15.exe 95 PID 4420 wrote to memory of 1428 4420 9E15.exe 95 PID 4420 wrote to memory of 1428 4420 9E15.exe 95 PID 4420 wrote to memory of 1428 4420 9E15.exe 95 PID 4420 wrote to memory of 1428 4420 9E15.exe 95 PID 4420 wrote to memory of 1428 4420 9E15.exe 95 PID 4420 wrote to memory of 1428 4420 9E15.exe 95 PID 4420 wrote to memory of 1428 4420 9E15.exe 95 -
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.
-
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 9E15.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 9E15.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4640 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3588
-
-
C:\Users\Admin\AppData\Local\Temp\tmp.exeC:\Users\Admin\AppData\Local\Temp\tmp.exe2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2932
-
-
C:\Users\Admin\AppData\Local\Temp\9E15.exeC:\Users\Admin\AppData\Local\Temp\9E15.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4420 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4004
-
-
C:\Users\Admin\AppData\Local\Temp\9E15.exeC:\Users\Admin\AppData\Local\Temp\9E15.exe2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1428
-
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
- Accesses Microsoft Outlook profiles
PID:2228
-
C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵PID:3608
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:1128
-
C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵PID:4832
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:4552
-
C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵PID:3884
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1KB
MD53a9188331a78f1dbce606db64b841fcb
SHA18e2c99b7c477d06591a856a4ea3e1e214719eee8
SHA256db4137e258a0f6159fda559a5f6dd2704be0582c3f0586f65040c7ad1eb68451
SHA512d1a994610a045d89d5d306866c24ae56bf16555414b8f63f632552568e67b5586f26d5a17a1f0a55ada376730298e6d856e9161828d4eae9decfa4e015e0e90a
-
Filesize
1KB
MD54280e36a29fa31c01e4d8b2ba726a0d8
SHA1c485c2c9ce0a99747b18d899b71dfa9a64dabe32
SHA256e2486a1bdcba80dad6dd6210d7374bd70ae196a523c06ceda71370fd3ea78359
SHA512494fe5f0ade03669e5830bed93c964d69b86629440148d7b0881cf53203fd89443ebff9b4d1ee9d96244f62af6edede622d9eacba37f80f389a0d522e4ad4ea4
-
Filesize
53KB
MD506ad34f9739c5159b4d92d702545bd49
SHA19152a0d4f153f3f40f7e606be75f81b582ee0c17
SHA256474813b625f00710f29fa3b488235a6a22201851efb336bddf60d7d24a66bfba
SHA512c272cd28ae164d465b779163ba9eca6a28261376414c6bbdfbd9f2128adb7f7ff1420e536b4d6000d0301ded2ec9036bc5c657588458bff41f176bdce8d74f92
-
Filesize
16KB
MD50a26c154b1d899793338a7b753c52685
SHA15e68411adb4600edeebe84160b2b4a61e90e392a
SHA2567086adc943cada030601e0685819fdfc2b322c2d150f6f1d63681e6fdc16dfc9
SHA512e079a722d02669d1f59830a0808bab61651c4828b853366b2745a8999ab4233ff9e66927cd3b9f569fcea5efd0dc388ddf3b0a2614fe87312a01a9d35a9bf206
-
Filesize
25KB
MD5378afc012094817b26459db696071baa
SHA1e498fbb56ca9cbba1dc4ffea0840fcefe5a5a951
SHA256d8ae15697fbd126606cd0e6e38ad4859667feca010786ae9fffef56c948a7ea3
SHA51279c76d7ca2762460c7d338cfc92ffac56103795a262e04ab3c8ef8db1d33065b79508a003715c1435160fa6044170bfe8d7f459e687871ba386998dd88363828
-
Filesize
25KB
MD5378afc012094817b26459db696071baa
SHA1e498fbb56ca9cbba1dc4ffea0840fcefe5a5a951
SHA256d8ae15697fbd126606cd0e6e38ad4859667feca010786ae9fffef56c948a7ea3
SHA51279c76d7ca2762460c7d338cfc92ffac56103795a262e04ab3c8ef8db1d33065b79508a003715c1435160fa6044170bfe8d7f459e687871ba386998dd88363828
-
Filesize
25KB
MD5378afc012094817b26459db696071baa
SHA1e498fbb56ca9cbba1dc4ffea0840fcefe5a5a951
SHA256d8ae15697fbd126606cd0e6e38ad4859667feca010786ae9fffef56c948a7ea3
SHA51279c76d7ca2762460c7d338cfc92ffac56103795a262e04ab3c8ef8db1d33065b79508a003715c1435160fa6044170bfe8d7f459e687871ba386998dd88363828
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82