Analysis
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max time kernel
91s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
20-01-2024 01:02
Static task
static1
Behavioral task
behavioral1
Sample
cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe
Resource
win7-20231215-en
General
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Target
cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe
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Size
1.3MB
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MD5
e0b4616fb674c5f364deb34f7bc28898
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SHA1
0519d146228a11a19e529d18d5c559ecdbbce089
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SHA256
cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4
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SHA512
e6815572b62d34e366248a1a00657de35f8dc932bb9512f0d1f35ac789fb100fd7ef13066a825fd0f9de9a784b221e4556347564fa8986956b86a2d3fabc39e5
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SSDEEP
24576:jBkVdlYAKA/MEj6RVHqnvX842SoypKQgPdI8JSVrDxBNGMZWtv:FsvPhjkK/8nSPpXgl5MrlBNh8tv
Malware Config
Signatures
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Detects Echelon Stealer payload 2 IoCs
Processes:
resource yara_rule behavioral2/files/0x0007000000023251-40.dat family_echelon behavioral2/memory/4652-48-0x0000021D86B90000-0x0000021D86C2A000-memory.dmp family_echelon -
Stops running service(s) 3 TTPs
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Checks computer location settings 2 TTPs 6 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exeEf.exeEc.exeEchelo.exeEchelon.sfx.exeEchelon.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation Ef.exe Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation Ec.exe Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation Echelo.exe Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation Echelon.sfx.exe Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation Echelon.exe -
Executes dropped EXE 5 IoCs
Processes:
Ef.exeEc.exeEchelo.exeEchelon.sfx.exeEchelon.exepid Process 4496 Ef.exe 2256 Ec.exe 1164 Echelo.exe 820 Echelon.sfx.exe 4652 Echelon.exe -
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:
Echelon.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Echelon.exe Key opened \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Echelon.exe Key opened \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Echelon.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 15 api.ipify.org 24 ip-api.com 13 api.ipify.org -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exepid Process 2820 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
Echelon.exepid Process 4652 Echelon.exe 4652 Echelon.exe 4652 Echelon.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Echelon.exedescription pid Process Token: SeDebugPrivilege 4652 Echelon.exe -
Suspicious use of WriteProcessMemory 18 IoCs
Processes:
cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exeEf.exeEc.exeEchelo.exeEchelon.sfx.exeEchelon.execmd.exedescription pid Process procid_target PID 220 wrote to memory of 4496 220 cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe 88 PID 220 wrote to memory of 4496 220 cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe 88 PID 220 wrote to memory of 4496 220 cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe 88 PID 4496 wrote to memory of 2256 4496 Ef.exe 91 PID 4496 wrote to memory of 2256 4496 Ef.exe 91 PID 4496 wrote to memory of 2256 4496 Ef.exe 91 PID 2256 wrote to memory of 1164 2256 Ec.exe 92 PID 2256 wrote to memory of 1164 2256 Ec.exe 92 PID 2256 wrote to memory of 1164 2256 Ec.exe 92 PID 1164 wrote to memory of 820 1164 Echelo.exe 93 PID 1164 wrote to memory of 820 1164 Echelo.exe 93 PID 1164 wrote to memory of 820 1164 Echelo.exe 93 PID 820 wrote to memory of 4652 820 Echelon.sfx.exe 94 PID 820 wrote to memory of 4652 820 Echelon.sfx.exe 94 PID 4652 wrote to memory of 2964 4652 Echelon.exe 97 PID 4652 wrote to memory of 2964 4652 Echelon.exe 97 PID 2964 wrote to memory of 2820 2964 cmd.exe 98 PID 2964 wrote to memory of 2820 2964 cmd.exe 98 -
outlook_office_path 1 IoCs
Processes:
Echelon.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Echelon.exe -
outlook_win_path 1 IoCs
Processes:
Echelon.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Echelon.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe"C:\Users\Admin\AppData\Local\Temp\cd0ea348e6708459fa683303551f16a85e5b16fd024392889ff0b92d15e74ba4.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:220 -
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Ef.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\Ef.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4496 -
C:\Users\Admin\AppData\Local\Temp\RarSFX1\Ec.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX1\Ec.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2256 -
C:\Users\Admin\AppData\Local\Temp\RarSFX2\Echelo.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX2\Echelo.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1164 -
C:\Users\Admin\AppData\Local\Temp\RarSFX3\Echelon.sfx.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX3\Echelon.sfx.exe"5⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:820 -
C:\Users\Admin\AppData\Local\Temp\RarSFX4\Echelon.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX4\Echelon.exe"6⤵
- Checks computer location settings
- 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:4652 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c sc stop "MpsSvc"7⤵
- Suspicious use of WriteProcessMemory
PID:2964 -
C:\Windows\system32\sc.exesc stop "MpsSvc"8⤵
- Launches sc.exe
PID:2820
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.1MB
MD5b5c6abc0206d3501b2fe4104ec7bb7cc
SHA1d767d16a38673ad60759fa67a542ca00a69e18f9
SHA2562bce48850beab2fab1bd1d305c442a50c37e6713b44036bef6518f4d941fd662
SHA512a2443a0e8c9a5fc9339fbf161b2aac68d8b82f673046fad964386a636036e68801650cdd311f6b8c616a78bbb5f62429f1b1effd1c1afd41ac17a31d8218ea50
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Filesize
995KB
MD587e97a6eae614b6337a6d4e51d08a88e
SHA17b5381794f91ab6c352e03bd534c818deb5f1d53
SHA25694dc9a9b077ffd5bf20b93c9eb4c488fce76b610e5308b2dd0d18b04f66df27d
SHA512ed25acd29946a3d41e09d1e46376293cb5e8c2833bf7ec886dec5c45fdba966393ed33895dfb99364fbba6bb98dfdef4b6406d52427a09f06b6373e368b029d0
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Filesize
821KB
MD5ecdff1026e3fde10bfbd1eec8fc56df7
SHA1582f980152c469de53aeb7230951ebb79f0e7056
SHA2564b4dfa7f0295c7499b377832ef5cd5d11cbc37bd6ad96b9969fa5d0055bed563
SHA5128b3e19d03fc9f4e336b999f8e261ea7ad4d652a9e28f254cce3ded41fbab32999b9682f68f0ee65ae6ddb4ca072a783487426f5070ada938b5ddd91d7a7f1e6d
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Filesize
649KB
MD5d87dbaf2295af3f2f55f7ca333b4668f
SHA195aa151d52ce3174d4d0e909c8e14e8373e4506a
SHA2564d02168925f891eba820a3d8050fdf7a3de7ddd9a3aabb529dfa45ae6e540f79
SHA512992b8d780758003e237e5c4c3b8eb9cd5276f79965d58976ce0b93128a95346927ee122294b8dea2c8f46aea4b7ab46c916099fbf60b15cc4987dec34217d0a3
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Filesize
592KB
MD5a6c5e33747f3087b1f1c96d5c800aa99
SHA1d3e400f79fb0520deca6eaf52ac030eadec98a71
SHA256818d899f97b141d991937b1d39936ead0a845022ea685c7e83aef1fd55838033
SHA5125339057ce8126bb5fc1c4a2115b4887533761ed5cb54976ec8b2087abf6a4602012cc939c04876a3cbf10ed270b100ee55b20fdecae51fa6952194ee2900fdb8
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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e