Analysis
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max time kernel
28s -
max time network
23s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
01-07-2024 14:49
Static task
static1
Behavioral task
behavioral1
Sample
Solara.exe
Resource
win10-20240404-en
General
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Target
Solara.exe
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Size
707KB
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MD5
890aefe0eb8cac48c07f1b8c32b40c52
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SHA1
354100304c1eedfea760b85804f79995cd558e39
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SHA256
9fb5c80c2a1e3d90dfd12b92fe46d1971c19c25f4e9094b6a911636b53c06281
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SHA512
d4831595f132738558cfc9d2e11e51c7eb68e4ae3b6ce0d81dee506ca5e856f4970cdbd9a15fc9ac0ecb74ed63b1752c2f576a130e1ec1fcdfeeb11330d580c5
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SSDEEP
12288:fCQjgAtAHM+vetZxF5EWry8AJGy0yR1Bjy1hbpyPeVo0Wx1Lk:f5ZWs+OZVEWry8AFfrjy1hVyPeVolrLk
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1251812743405895720/XbVTvqdGOOjadCOCInc1DelKACOZUrVTE090_g72gm3le9ZWZGqoLmCCp_mx-rpg0aRM
Signatures
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Detect Umbral payload 2 IoCs
resource yara_rule behavioral1/files/0x000800000001ac22-9.dat family_umbral behavioral1/memory/1256-13-0x000001BB1CA30000-0x000001BB1CA70000-memory.dmp family_umbral -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ cd57e4c171d6e8f5ea8b8f824a6a7316.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion cd57e4c171d6e8f5ea8b8f824a6a7316.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion cd57e4c171d6e8f5ea8b8f824a6a7316.exe -
Executes dropped EXE 3 IoCs
pid Process 1256 SoIaraBootstrapper.exe 3900 SolaraBootstrapper.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe -
Loads dropped DLL 5 IoCs
pid Process 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe -
resource yara_rule behavioral1/files/0x000700000001ac35-1486.dat themida behavioral1/memory/4860-1493-0x0000000180000000-0x0000000180B0D000-memory.dmp themida behavioral1/memory/4860-1495-0x0000000180000000-0x0000000180B0D000-memory.dmp themida behavioral1/memory/4860-1494-0x0000000180000000-0x0000000180B0D000-memory.dmp themida behavioral1/memory/4860-1496-0x0000000180000000-0x0000000180B0D000-memory.dmp themida behavioral1/memory/4860-1502-0x0000000180000000-0x0000000180B0D000-memory.dmp themida -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA cd57e4c171d6e8f5ea8b8f824a6a7316.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs
flow ioc 15 raw.githubusercontent.com 7 raw.githubusercontent.com 8 raw.githubusercontent.com 12 raw.githubusercontent.com -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 13 IoCs
pid Process 3900 SolaraBootstrapper.exe 3900 SolaraBootstrapper.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe -
Suspicious use of AdjustPrivilegeToken 45 IoCs
description pid Process Token: SeDebugPrivilege 1256 SoIaraBootstrapper.exe Token: SeDebugPrivilege 3900 SolaraBootstrapper.exe Token: SeIncreaseQuotaPrivilege 1952 wmic.exe Token: SeSecurityPrivilege 1952 wmic.exe Token: SeTakeOwnershipPrivilege 1952 wmic.exe Token: SeLoadDriverPrivilege 1952 wmic.exe Token: SeSystemProfilePrivilege 1952 wmic.exe Token: SeSystemtimePrivilege 1952 wmic.exe Token: SeProfSingleProcessPrivilege 1952 wmic.exe Token: SeIncBasePriorityPrivilege 1952 wmic.exe Token: SeCreatePagefilePrivilege 1952 wmic.exe Token: SeBackupPrivilege 1952 wmic.exe Token: SeRestorePrivilege 1952 wmic.exe Token: SeShutdownPrivilege 1952 wmic.exe Token: SeDebugPrivilege 1952 wmic.exe Token: SeSystemEnvironmentPrivilege 1952 wmic.exe Token: SeRemoteShutdownPrivilege 1952 wmic.exe Token: SeUndockPrivilege 1952 wmic.exe Token: SeManageVolumePrivilege 1952 wmic.exe Token: 33 1952 wmic.exe Token: 34 1952 wmic.exe Token: 35 1952 wmic.exe Token: 36 1952 wmic.exe Token: SeIncreaseQuotaPrivilege 1952 wmic.exe Token: SeSecurityPrivilege 1952 wmic.exe Token: SeTakeOwnershipPrivilege 1952 wmic.exe Token: SeLoadDriverPrivilege 1952 wmic.exe Token: SeSystemProfilePrivilege 1952 wmic.exe Token: SeSystemtimePrivilege 1952 wmic.exe Token: SeProfSingleProcessPrivilege 1952 wmic.exe Token: SeIncBasePriorityPrivilege 1952 wmic.exe Token: SeCreatePagefilePrivilege 1952 wmic.exe Token: SeBackupPrivilege 1952 wmic.exe Token: SeRestorePrivilege 1952 wmic.exe Token: SeShutdownPrivilege 1952 wmic.exe Token: SeDebugPrivilege 1952 wmic.exe Token: SeSystemEnvironmentPrivilege 1952 wmic.exe Token: SeRemoteShutdownPrivilege 1952 wmic.exe Token: SeUndockPrivilege 1952 wmic.exe Token: SeManageVolumePrivilege 1952 wmic.exe Token: 33 1952 wmic.exe Token: 34 1952 wmic.exe Token: 35 1952 wmic.exe Token: 36 1952 wmic.exe Token: SeDebugPrivilege 4860 cd57e4c171d6e8f5ea8b8f824a6a7316.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 596 wrote to memory of 1256 596 Solara.exe 75 PID 596 wrote to memory of 1256 596 Solara.exe 75 PID 596 wrote to memory of 3900 596 Solara.exe 77 PID 596 wrote to memory of 3900 596 Solara.exe 77 PID 596 wrote to memory of 3900 596 Solara.exe 77 PID 1256 wrote to memory of 1952 1256 SoIaraBootstrapper.exe 79 PID 1256 wrote to memory of 1952 1256 SoIaraBootstrapper.exe 79 PID 3900 wrote to memory of 4860 3900 SolaraBootstrapper.exe 82 PID 3900 wrote to memory of 4860 3900 SolaraBootstrapper.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\Solara.exe"C:\Users\Admin\AppData\Local\Temp\Solara.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:596 -
C:\Users\Admin\AppData\Local\Temp\SoIaraBootstrapper.exe"C:\Users\Admin\AppData\Local\Temp\SoIaraBootstrapper.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1256 -
C:\Windows\System32\Wbem\wmic.exe"wmic.exe" csproduct get uuid3⤵
- Suspicious use of AdjustPrivilegeToken
PID:1952
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C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper.exe"C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3900 -
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
PID:4860
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
227KB
MD5c4256ec1eed03d809035bbd044aa0f19
SHA1a0b69231eb481436b51bb78605e93dcdf5d986d0
SHA256b4914acc9d1e0cc61549d3c21f290369eea0e9a205ea7ce465b221ae3ef409d4
SHA51241cfb128462ef590fac4ed44bc1df187f51fb46353579c718bb2e361d97b06a02a970bbe959898b21a2133a7c1732dfe912e0dca8c3d4d3608b15469258006b1
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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
99KB
MD57a2b8cfcd543f6e4ebca43162b67d610
SHA1c1c45a326249bf0ccd2be2fbd412f1a62fb67024
SHA2567d7ca28235fba5603a7f40514a552ac7efaa67a5d5792bb06273916aa8565c5f
SHA512e38304fb9c5af855c1134f542adf72cde159fab64385533eafa5bb6e374f19b5a29c0cb5516fc5da5c0b5ac47c2f6420792e0ac8ddff11e749832a7b7f3eb5c8
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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
34B
MD50e2184f1c7464b6617329fb18f107b4f
SHA16f22f98471e33c9db10d6f6f1728e98852e25b8f
SHA256dbf5f44e1b84a298dbbcad3c31a617d2f6cfa08eb5d16e05a5c28726c574d4eb
SHA5128e745c0215d52e15702551f29efb882a5eba97b5f279ccc29293b1a9b1b8661bf71b548569f9a99fa35c35a15d1b6b288d3c381c1292418c36dc89e2fa0b3a37
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Filesize
90KB
MD5d84e7f79f4f0d7074802d2d6e6f3579e
SHA1494937256229ef022ff05855c3d410ac3e7df721
SHA256dcfc2b4fa3185df415855ec54395d9c36612f68100d046d8c69659da01f7d227
SHA512ed7b0ac098c8184b611b83158eaa86619001e74dba079d398b34ac694ce404ba133c2baf43051840132d6a3a089a375550072543b9fab2549d57320d13502260
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Filesize
13KB
MD56557bd5240397f026e675afb78544a26
SHA1839e683bf68703d373b6eac246f19386bb181713
SHA256a7fecfc225dfdd4e14dcd4d1b4ba1b9f8e4d1984f1cdd8cda3a9987e5d53c239
SHA512f2399d34898a4c0c201372d2dd084ee66a66a1c3eae949e568421fe7edada697468ef81f4fcab2afd61eaf97bcb98d6ade2d97295e2f674e93116d142e892e97
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Filesize
4.2MB
MD5f71b342220b8f8935abe5ea0b1e5f30c
SHA1a70d41dbc456d548e790af717575b1f83e3f38b5
SHA256dec8c51c89452b183201e58e4cfceffb0924c4c1f7729841a739086711ff021f
SHA512d6ba2d0eecb2bd70ea727c7bd86cce75fe535e4a7688eb6fc6334e30f568d24d0b6661b8873ddb88c1bb75dbf772fae215b101545ff85e6461a2b05b85dfe05f
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Filesize
522KB
MD5e31f5136d91bad0fcbce053aac798a30
SHA1ee785d2546aec4803bcae08cdebfd5d168c42337
SHA256ee94e2201870536522047e6d7fe7b903a63cd2e13e20c8fffc86d0e95361e671
SHA512a1543eb1d10d25efb44f9eaa0673c82bfac5173055d04c0f3be4792984635a7c774df57a8e289f840627754a4e595b855d299070d469e0f1e637c3f35274abe6
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Filesize
113KB
MD575365924730b0b2c1a6ee9028ef07685
SHA1a10687c37deb2ce5422140b541a64ac15534250f
SHA256945e7f5d09938b7769a4e68f4ef01406e5af9f40db952cba05ddb3431dd1911b
SHA512c1e31c18903e657203ae847c9af601b1eb38efa95cb5fa7c1b75f84a2cba9023d08f1315c9bb2d59b53256dfdb3bac89930252138475491b21749471adc129a1