Resubmissions
23-06-2024 10:41
240623-mrc4qaycph 1023-06-2024 10:36
240623-mm7sjasdlk 1023-06-2024 10:32
240623-mk1lfascrp 1023-06-2024 10:26
240623-mgw4vaybre 10Analysis
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max time kernel
149s -
max time network
136s -
platform
windows10-1703_x64 -
resource
win10-20240611-en -
resource tags
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submitted
23-06-2024 10:41
General
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Target
Solara/SolaraB/SolaraBootstrapper.exe
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Size
826KB
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MD5
886d05ab350457e2ddde2f569dc0668a
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SHA1
3448ca0ce7b2f279694f8a360348c0ade71b9322
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SHA256
286b6d3aa77caa78854b3648d96d80a1f207d7b94fb54103b44600a6f72839b5
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SHA512
31186e5e079389f820a026843340468cf183c31ee18d60537d48e83b4ecb08b86f2e1b41012b4fa25ebbbd33a4fbc833986815e71010b74df3e04fdaf49d7962
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SSDEEP
12288:gCQjgAtAHM+vetZxF5EWry8AJGy03eJxZM6gMkIhS:g5ZWs+OZVEWry8AFL06gGS
Malware Config
Extracted
44caliber
https://discord.com/api/webhooks/1169713279464120370/GUIw2wEmQMllUHEfRf3MNeS3DBNrZN-RuTQ9QbFfAqIZNVHtIlkj1yiD5QqgrIlv8gQi
Signatures
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44Caliber
An open source infostealer written in C#.
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
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Executes dropped EXE 3 IoCs
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Loads dropped DLL 5 IoCs
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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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Themida packer 18 IoCs
Detects Themida, an advanced Windows software protection system.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks whether UAC is enabled 1 TTPs 1 IoCs
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Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of WriteProcessMemory 7 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Solara\SolaraB\SolaraBootstrapper.exe"C:\Users\Admin\AppData\Local\Temp\Solara\SolaraB\SolaraBootstrapper.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\RarSFX0\SolaraBootstrapper.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\SolaraBootstrapper.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe"C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe"3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\RarSFX0\Insidious.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\Insidious.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
303KB
MD5cf6fbbd85d69ed42107a937576028fc9
SHA1d8f2ca741a8f0beb8e89a68407241c5332759303
SHA256644455284cd1e2188564dcea09cc0d09448423c9bfdeb9d05a834600d593ec1a
SHA512562f8004f6d406ed596ff2ad7487f616f1abb98d415d70d87c18f11f364b35a40b959800085966b1680737e6bc7e3793d3b8c60046ea680dc87a673badeab94e
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Filesize
13KB
MD56557bd5240397f026e675afb78544a26
SHA1839e683bf68703d373b6eac246f19386bb181713
SHA256a7fecfc225dfdd4e14dcd4d1b4ba1b9f8e4d1984f1cdd8cda3a9987e5d53c239
SHA512f2399d34898a4c0c201372d2dd084ee66a66a1c3eae949e568421fe7edada697468ef81f4fcab2afd61eaf97bcb98d6ade2d97295e2f674e93116d142e892e97
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Filesize
488KB
MD5851fee9a41856b588847cf8272645f58
SHA1ee185a1ff257c86eb19d30a191bf0695d5ac72a1
SHA2565e7faee6b8230ca3b97ce9542b914db3abbbd1cb14fd95a39497aaad4c1094ca
SHA512cf5c70984cf33e12cf57116da1f282a5bd6433c570831c185253d13463b0b9a0b9387d4d1bf4dddab3292a5d9ba96d66b6812e9d7ebc5eb35cb96eea2741348f
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Filesize
37KB
MD54cf94ffa50fd9bdc0bb93cceaede0629
SHA13e30eca720f4c2a708ec53fd7f1ba9e778b4f95f
SHA25650b2e46c99076f6fa9c33e0a98f0fe3a2809a7c647bb509066e58f4c7685d7e6
SHA512dc400518ef2f68920d90f1ce66fbb8f4dde2294e0efeecd3d9329aa7a66e1ab53487b120e13e15f227ea51784f90208c72d7fbfa9330d9b71dd9a1a727d11f98
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Filesize
43KB
MD534ec990ed346ec6a4f14841b12280c20
SHA16587164274a1ae7f47bdb9d71d066b83241576f0
SHA2561e987b22cd011e4396a0805c73539586b67df172df75e3dded16a77d31850409
SHA512b565015ca4b11b79ecbc8127f1fd40c986948050f1caefdd371d34ed2136af0aabf100863dc6fd16d67e3751d44ee13835ea9bf981ac0238165749c4987d1ae0
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Filesize
139B
MD5d0104f79f0b4f03bbcd3b287fa04cf8c
SHA154f9d7adf8943cb07f821435bb269eb4ba40ccc2
SHA256997785c50b0773e5e18bf15550fbf57823c634fefe623cd37b3c83696402ad0a
SHA512daf9b5445cfc02397f398adfa0258f2489b70699dfec6ca7e5b85afe5671fdcabe59edee332f718f5e5778feb1e301778dffe93bb28c1c0914f669659bad39c6
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Filesize
43B
MD5c28b0fe9be6e306cc2ad30fe00e3db10
SHA1af79c81bd61c9a937fca18425dd84cdf8317c8b9
SHA2560694050195fc694c5846b0a2a66b437ac775da988f0a779c55fb892597f7f641
SHA512e3eca17804522ffa4f41e836e76e397a310a20e8261a38115b67e8b644444153039d04198fb470f45be2997d2c7a72b15bd4771a02c741b3cbc072ea6ef432e9
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Filesize
216B
MD5c2ab942102236f987048d0d84d73d960
SHA195462172699187ac02eaec6074024b26e6d71cff
SHA256948366fea3b423a46366326d0bb2e54b08abd1cf0b243678ba6625740c40da5a
SHA512e36b20c16ceeb090750f3865efc8d7fd983ae4e8b41c30cc3865d2fd4925bf5902627e1f1ed46c0ff2453f076ef9de34be899ef57754b29cd158440071318479
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Filesize
1KB
MD513babc4f212ce635d68da544339c962b
SHA14881ad2ec8eb2470a7049421047c6d076f48f1de
SHA256bd47ce7b88c7759630d1e2b9fcfa170a0f1fde522be09e13fb1581a79d090400
SHA51240e30174433408e0e2ed46d24373b12def47f545d9183b7bce28d4ddd8c8bb528075c7f20e118f37661db9f1bba358999d81a14425eb3e0a4a20865dfcb53182
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Filesize
695KB
MD5195ffb7167db3219b217c4fd439eedd6
SHA11e76e6099570ede620b76ed47cf8d03a936d49f8
SHA256e1e27af7b07eeedf5ce71a9255f0422816a6fc5849a483c6714e1b472044fa9d
SHA51256eb7f070929b239642dab729537dde2c2287bdb852ad9e80b5358c74b14bc2b2dded910d0e3b6304ea27eb587e5f19db0a92e1cbae6a70fb20b4ef05057e4ac
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Filesize
133KB
MD5a0bd0d1a66e7c7f1d97aedecdafb933f
SHA1dd109ac34beb8289030e4ec0a026297b793f64a3
SHA25679d7e45f8631e8d2541d01bfb5a49a3a090be72b3d465389a2d684680fee2e36
SHA5122a50ae5c7234a44b29f82ebc2e3cfed37bf69294eb00b2dc8905c61259975b2f3a059c67aeab862f002752454d195f7191d9b82b056f6ef22d6e1b0bb3673d50
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Filesize
5.2MB
MD5aead90ab96e2853f59be27c4ec1e4853
SHA143cdedde26488d3209e17efff9a51e1f944eb35f
SHA25646cfbe804b29c500ebc0b39372e64c4c8b4f7a8e9b220b5f26a9adf42fcb2aed
SHA512f5044f2ee63906287460b9adabfcf3c93c60b51c86549e33474c4d7f81c4f86cd03cd611df94de31804c53006977874b8deb67c4bf9ea1c2b70c459b3a44b38d
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Filesize
42B
MD5ed3b419c94386a952da318b60459a509
SHA1211feef90b099197ea5f08a165eb254beb9bb7ae
SHA2566cbf238518719c6a42f379cac879e942a726de67e9ecafed8132db82e700404d
SHA5122e571b88165a45d545f0fc8698448257b5dead91165bd6756627d1bce1188c47ed6cea07f0bf80e12a975b5a92194d76ee68cb915ad3f8e132051ceb000a63be
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Filesize
3.9MB
MD5a4e469b250ddd6b7bf49530074eb58d6
SHA1b453b13beef7d25bc0675fe68177e5bd2a3b3a22
SHA256d0123ecdd83962566e620da8f4dbb3a254ed614370d67a07f6c26c3ebbd12c06
SHA512af21f10ed6ce8b1e98be439f05786dee2dbbe4d5930853ec383f607a9c03b94609d35234bc793422768c1eda342376ca8bb87d6f3a02f30af9fcf37a0cff1bea
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Filesize
90KB
MD5d84e7f79f4f0d7074802d2d6e6f3579e
SHA1494937256229ef022ff05855c3d410ac3e7df721
SHA256dcfc2b4fa3185df415855ec54395d9c36612f68100d046d8c69659da01f7d227
SHA512ed7b0ac098c8184b611b83158eaa86619001e74dba079d398b34ac694ce404ba133c2baf43051840132d6a3a089a375550072543b9fab2549d57320d13502260
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Filesize
522KB
MD5e31f5136d91bad0fcbce053aac798a30
SHA1ee785d2546aec4803bcae08cdebfd5d168c42337
SHA256ee94e2201870536522047e6d7fe7b903a63cd2e13e20c8fffc86d0e95361e671
SHA512a1543eb1d10d25efb44f9eaa0673c82bfac5173055d04c0f3be4792984635a7c774df57a8e289f840627754a4e595b855d299070d469e0f1e637c3f35274abe6
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Filesize
99KB
MD57a2b8cfcd543f6e4ebca43162b67d610
SHA1c1c45a326249bf0ccd2be2fbd412f1a62fb67024
SHA2567d7ca28235fba5603a7f40514a552ac7efaa67a5d5792bb06273916aa8565c5f
SHA512e38304fb9c5af855c1134f542adf72cde159fab64385533eafa5bb6e374f19b5a29c0cb5516fc5da5c0b5ac47c2f6420792e0ac8ddff11e749832a7b7f3eb5c8
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Filesize
113KB
MD575365924730b0b2c1a6ee9028ef07685
SHA1a10687c37deb2ce5422140b541a64ac15534250f
SHA256945e7f5d09938b7769a4e68f4ef01406e5af9f40db952cba05ddb3431dd1911b
SHA512c1e31c18903e657203ae847c9af601b1eb38efa95cb5fa7c1b75f84a2cba9023d08f1315c9bb2d59b53256dfdb3bac89930252138475491b21749471adc129a1
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Filesize
328KB
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Filesize
4KB
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Filesize
6.9MB
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Filesize
6.9MB
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Filesize
40KB
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Filesize
40KB
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Filesize
72KB
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Filesize
104KB
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Filesize
56KB
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Filesize
504KB
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Filesize
224KB
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Filesize
712KB
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Filesize
10.4MB
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Filesize
10.4MB
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Filesize
10.4MB
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Filesize
10.4MB
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Filesize
736KB
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Filesize
5.2MB
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Filesize
136KB
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Filesize
56KB
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Filesize
32KB
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Filesize
144KB
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Filesize
10.4MB
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Filesize
10.4MB
-
Filesize
10.4MB
-
Filesize
10.4MB
-
Filesize
10.4MB
-
Filesize
10.4MB
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Filesize
10.4MB
-
Filesize
10.4MB
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Filesize
10.4MB
-
Filesize
10.4MB
-
Filesize
10.4MB
-
Filesize
10.4MB
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Filesize
10.4MB