Analysis
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max time kernel
146s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
20-01-2024 01:02
Static task
static1
Behavioral task
behavioral1
Sample
94dc9a9b077ffd5bf20b93c9eb4c488fce76b610e5308b2dd0d18b04f66df27d.exe
Resource
win7-20231215-en
General
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Target
94dc9a9b077ffd5bf20b93c9eb4c488fce76b610e5308b2dd0d18b04f66df27d.exe
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Size
995KB
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MD5
87e97a6eae614b6337a6d4e51d08a88e
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SHA1
7b5381794f91ab6c352e03bd534c818deb5f1d53
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SHA256
94dc9a9b077ffd5bf20b93c9eb4c488fce76b610e5308b2dd0d18b04f66df27d
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SHA512
ed25acd29946a3d41e09d1e46376293cb5e8c2833bf7ec886dec5c45fdba966393ed33895dfb99364fbba6bb98dfdef4b6406d52427a09f06b6373e368b029d0
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SSDEEP
24576:jBkVdlYAK0qnvXMGYsHM/Hv5WPDRFN2Hs:FsvOvXMb0D7N2M
Malware Config
Signatures
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Detects Echelon Stealer payload 4 IoCs
resource yara_rule behavioral2/files/0x0006000000023201-29.dat family_echelon behavioral2/memory/2116-30-0x00000201CC600000-0x00000201CC69A000-memory.dmp family_echelon behavioral2/files/0x0006000000023201-28.dat family_echelon behavioral2/files/0x0006000000023201-22.dat family_echelon -
Stops running service(s) 3 TTPs
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Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation 94dc9a9b077ffd5bf20b93c9eb4c488fce76b610e5308b2dd0d18b04f66df27d.exe Key value queried \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation Echelo.exe Key value queried \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation Echelon.sfx.exe Key value queried \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation Echelon.exe -
Executes dropped EXE 3 IoCs
pid Process 4104 Echelo.exe 1228 Echelon.sfx.exe 2116 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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Echelon.exe Key opened \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Echelon.exe Key opened \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\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.
flow ioc 17 api.ipify.org 20 api.ipify.org 79 ip-api.com -
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2496 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
pid Process 2116 Echelon.exe 2116 Echelon.exe 2116 Echelon.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2116 Echelon.exe Token: SeManageVolumePrivilege 532 svchost.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 5060 wrote to memory of 4104 5060 94dc9a9b077ffd5bf20b93c9eb4c488fce76b610e5308b2dd0d18b04f66df27d.exe 85 PID 5060 wrote to memory of 4104 5060 94dc9a9b077ffd5bf20b93c9eb4c488fce76b610e5308b2dd0d18b04f66df27d.exe 85 PID 5060 wrote to memory of 4104 5060 94dc9a9b077ffd5bf20b93c9eb4c488fce76b610e5308b2dd0d18b04f66df27d.exe 85 PID 4104 wrote to memory of 1228 4104 Echelo.exe 92 PID 4104 wrote to memory of 1228 4104 Echelo.exe 92 PID 4104 wrote to memory of 1228 4104 Echelo.exe 92 PID 1228 wrote to memory of 2116 1228 Echelon.sfx.exe 93 PID 1228 wrote to memory of 2116 1228 Echelon.sfx.exe 93 PID 2116 wrote to memory of 2584 2116 Echelon.exe 97 PID 2116 wrote to memory of 2584 2116 Echelon.exe 97 PID 2584 wrote to memory of 2496 2584 cmd.exe 96 PID 2584 wrote to memory of 2496 2584 cmd.exe 96 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Echelon.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Echelon.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\94dc9a9b077ffd5bf20b93c9eb4c488fce76b610e5308b2dd0d18b04f66df27d.exe"C:\Users\Admin\AppData\Local\Temp\94dc9a9b077ffd5bf20b93c9eb4c488fce76b610e5308b2dd0d18b04f66df27d.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5060 -
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Echelo.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\Echelo.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4104 -
C:\Users\Admin\AppData\Local\Temp\RarSFX1\Echelon.sfx.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX1\Echelon.sfx.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1228 -
C:\Users\Admin\AppData\Local\Temp\RarSFX2\Echelon.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX2\Echelon.exe"4⤵
- 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:2116 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c sc stop "MpsSvc"5⤵
- Suspicious use of WriteProcessMemory
PID:2584
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C:\Windows\system32\sc.exesc stop "MpsSvc"1⤵
- Launches sc.exe
PID:2496
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵PID:2412
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
PID:532
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
297KB
MD5d3309191069a8450034c4423942da9c0
SHA12873b5f3e290ef11cca1b46aa19ad99ec90e24ba
SHA256574a5aafa98eca477995e51bc1260c3acb4da7becbefe10ea7aef7cdb7d7de59
SHA5126da2f1be036a35e4c68acba5ad9330af44769d8fe4fb0c12cafc525ee166961af4819033b7341ebae2769ef3b2ea81eb7bd5c53baf9f6043008f5bea495b7fe8
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Filesize
142KB
MD52653a79ea8b05765244a27073c2d2e77
SHA18cd2bd39157f102f2a485de9c6ddb36ac9901ada
SHA256c39d4c5cdb794dd3f36fa7e63ab6b55c0aecb4cfa1378821e5bd887a6a553e2c
SHA5128b73892be7e8b6d0d29a4d63aa36ac85e89dbe0e13451d708362b1b32121780fc23159b74792c204536064d64c6d1b23af08898a96448ef08e239dca272c3566
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Filesize
49KB
MD5c8bba4d5e0cd3f3865394f399b77077e
SHA1d0a974a2eafef93377baadbd989463127800b42b
SHA256738d8d2a540586878f81c7b24e82e2f41edde8bf1a0573f2077c7a362f82a9dc
SHA5124142169a5e20dd60afab4182136072e3dbc5158aa874214a8d51e27e0dabb0a5ce6b871ca52984797763885d05457682dc29e9b244f2eac466d573ef74a1b1d2
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Filesize
583KB
MD5bb2847eb97f3cfcd9ad90440b39faaf7
SHA1c895b360d6e0095e66febe2e9b4e4bc0ac993a07
SHA256fdcb8a7f8949ebe037f6cb8cb307427ec10da380303ade6daadc7db7c166d244
SHA5122a6e3f4ee22d558b73add32e4b0a77dbc1e3866e6335455bdafea1dd9bb903b452aa6687882d81a0f4b34dc30afc3e319f8aa4d481523493bb92c3387c3b6588
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Filesize
649KB
MD5d87dbaf2295af3f2f55f7ca333b4668f
SHA195aa151d52ce3174d4d0e909c8e14e8373e4506a
SHA2564d02168925f891eba820a3d8050fdf7a3de7ddd9a3aabb529dfa45ae6e540f79
SHA512992b8d780758003e237e5c4c3b8eb9cd5276f79965d58976ce0b93128a95346927ee122294b8dea2c8f46aea4b7ab46c916099fbf60b15cc4987dec34217d0a3
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Filesize
371KB
MD520d46db4b65f63ae3201318dd3afa640
SHA1385e3c79236a747dfd41ae65f5b7d5721b30840f
SHA256b89a38362edbca622b14bd58f588e2168865a47a66c064d4f1062ef9887cf644
SHA5123815638de7fed3e9d5432f09e8ecd925fc0576f63a715d6ca7c17993f31b9cb81a9f6c2be9d112bc5e274fb730086f62d23ed125216cd1918dd467b9b8afeda2
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Filesize
490KB
MD5853d3a2c2aa008b2721eec4d98348a8d
SHA1b6c42c4dbc13250573bd65057d412c5ff7d07b54
SHA2565c0dc12ab37d39f583fb7c3eabcacb5c78381bc40e7dd88d9ab5db04033b98df
SHA512084ac6dd898e4c0b78ca70f2c917e03bdef51174d519b6b28bf90ffed580907733a75f2dffeed8c845b90259b5d158b6f818e94f4be1af29b3d97e0c5434e643
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Filesize
329KB
MD594b8630741eaf13e80aa93ff39a1ef04
SHA1d1427cf71987a25400265cd1fa6bf78c6c7c2967
SHA256b205870444d00f2faea0ad36760be3fad657dd12c72be4ff5f1164afd148ea5c
SHA5124233d827c1e16ce3da9cadd0afab55f8bc564241cf7141a067683418cce10c0aceb339cf1070dcf2a4416df7eb353f9d0c8fc8c7654a4954e92b3433703ab6ac