2510be907ec476e8375ac7b5431536ae9a32bf99fe77ab695a5100852b111b96

Resubmissions

26-05-2024 10:14

240526-l913tseg6s 9

Analysis

max time kernel
35s
max time network
33s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
26-05-2024 10:14

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

SolaraB/Solara/SolaraBootstrapper.exe
Size

13KB
MD5

6557bd5240397f026e675afb78544a26
SHA1

839e683bf68703d373b6eac246f19386bb181713
SHA256

a7fecfc225dfdd4e14dcd4d1b4ba1b9f8e4d1984f1cdd8cda3a9987e5d53c239
SHA512

f2399d34898a4c0c201372d2dd084ee66a66a1c3eae949e568421fe7edada697468ef81f4fcab2afd61eaf97bcb98d6ade2d97295e2f674e93116d142e892e97
SSDEEP

192:konexQO0FoAWyEfJkVIaqaLHmr/XKT0ifnTJ1jvVXctNjA:HnexHAWyEfJoIaqayzKAifd1LVEj

Score

9^/10

evasion themida trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

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.

Query Registry

T1012

System Information Discovery

T1082

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	SolaraBootstrapper.exe

Executes dropped EXE 1 IoCs

pid	Process
2544	cd57e4c171d6e8f5ea8b8f824a6a7316.exe

Loads dropped DLL 5 IoCs

pid	Process
2544	cd57e4c171d6e8f5ea8b8f824a6a7316.exe
2544	cd57e4c171d6e8f5ea8b8f824a6a7316.exe
2544	cd57e4c171d6e8f5ea8b8f824a6a7316.exe
2544	cd57e4c171d6e8f5ea8b8f824a6a7316.exe
2544	cd57e4c171d6e8f5ea8b8f824a6a7316.exe

Themida packer 7 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/files/0x000700000002340a-1485.dat	themida
behavioral2/memory/2544-1492-0x0000000180000000-0x0000000180CAE000-memory.dmp	themida
behavioral2/memory/2544-1493-0x0000000180000000-0x0000000180CAE000-memory.dmp	themida
behavioral2/memory/2544-1494-0x0000000180000000-0x0000000180CAE000-memory.dmp	themida
behavioral2/memory/2544-1495-0x0000000180000000-0x0000000180CAE000-memory.dmp	themida
behavioral2/memory/2544-1500-0x0000000180000000-0x0000000180CAE000-memory.dmp	themida
behavioral2/memory/2544-1504-0x0000000180000000-0x0000000180CAE000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

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 3 IoCs

Web Service

T1102

flow	ioc
9	raw.githubusercontent.com
10	raw.githubusercontent.com
39	raw.githubusercontent.com

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2544	cd57e4c171d6e8f5ea8b8f824a6a7316.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2660	SolaraBootstrapper.exe
2660	SolaraBootstrapper.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2660	SolaraBootstrapper.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2544	cd57e4c171d6e8f5ea8b8f824a6a7316.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 2544	2660	SolaraBootstrapper.exe	92
PID 2660 wrote to memory of 2544	2660	SolaraBootstrapper.exe	92

C:\Users\Admin\AppData\Local\Temp\SolaraB\Solara\SolaraBootstrapper.exe
"C:\Users\Admin\AppData\Local\Temp\SolaraB\Solara\SolaraBootstrapper.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe
  "C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe"
  2⤵
  - 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 use of FindShellTrayWindow
  PID:2544

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:2396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Microsoft.Web.WebView2.Core.dll

Filesize
488KB

MD5
851fee9a41856b588847cf8272645f58

SHA1
ee185a1ff257c86eb19d30a191bf0695d5ac72a1

SHA256
5e7faee6b8230ca3b97ce9542b914db3abbbd1cb14fd95a39497aaad4c1094ca

SHA512
cf5c70984cf33e12cf57116da1f282a5bd6433c570831c185253d13463b0b9a0b9387d4d1bf4dddab3292a5d9ba96d66b6812e9d7ebc5eb35cb96eea2741348f

Download Submit
C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Microsoft.Web.WebView2.Wpf.dll

Filesize
43KB

MD5
34ec990ed346ec6a4f14841b12280c20

SHA1
6587164274a1ae7f47bdb9d71d066b83241576f0

SHA256
1e987b22cd011e4396a0805c73539586b67df172df75e3dded16a77d31850409

SHA512
b565015ca4b11b79ecbc8127f1fd40c986948050f1caefdd371d34ed2136af0aabf100863dc6fd16d67e3751d44ee13835ea9bf981ac0238165749c4987d1ae0

Download Submit
C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Monaco\fileaccess\node_modules\get-intrinsic\.nycrc

Filesize
139B

MD5
d0104f79f0b4f03bbcd3b287fa04cf8c

SHA1
54f9d7adf8943cb07f821435bb269eb4ba40ccc2

SHA256
997785c50b0773e5e18bf15550fbf57823c634fefe623cd37b3c83696402ad0a

SHA512
daf9b5445cfc02397f398adfa0258f2489b70699dfec6ca7e5b85afe5671fdcabe59edee332f718f5e5778feb1e301778dffe93bb28c1c0914f669659bad39c6

Download Submit
C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Monaco\fileaccess\node_modules\has-proto\.eslintrc

Filesize
43B

MD5
c28b0fe9be6e306cc2ad30fe00e3db10

SHA1
af79c81bd61c9a937fca18425dd84cdf8317c8b9

SHA256
0694050195fc694c5846b0a2a66b437ac775da988f0a779c55fb892597f7f641

SHA512
e3eca17804522ffa4f41e836e76e397a310a20e8261a38115b67e8b644444153039d04198fb470f45be2997d2c7a72b15bd4771a02c741b3cbc072ea6ef432e9

Download Submit
C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Monaco\fileaccess\node_modules\hasown\.nycrc

Filesize
216B

MD5
c2ab942102236f987048d0d84d73d960

SHA1
95462172699187ac02eaec6074024b26e6d71cff

SHA256
948366fea3b423a46366326d0bb2e54b08abd1cf0b243678ba6625740c40da5a

SHA512
e36b20c16ceeb090750f3865efc8d7fd983ae4e8b41c30cc3865d2fd4925bf5902627e1f1ed46c0ff2453f076ef9de34be899ef57754b29cd158440071318479

Download Submit
C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Monaco\fileaccess\node_modules\vary\LICENSE

Filesize
1KB

MD5
13babc4f212ce635d68da544339c962b

SHA1
4881ad2ec8eb2470a7049421047c6d076f48f1de

SHA256
bd47ce7b88c7759630d1e2b9fcfa170a0f1fde522be09e13fb1581a79d090400

SHA512
40e30174433408e0e2ed46d24373b12def47f545d9183b7bce28d4ddd8c8bb528075c7f20e118f37661db9f1bba358999d81a14425eb3e0a4a20865dfcb53182

Download Submit
C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Newtonsoft.Json.dll

Filesize
695KB

MD5
195ffb7167db3219b217c4fd439eedd6

SHA1
1e76e6099570ede620b76ed47cf8d03a936d49f8

SHA256
e1e27af7b07eeedf5ce71a9255f0422816a6fc5849a483c6714e1b472044fa9d

SHA512
56eb7f070929b239642dab729537dde2c2287bdb852ad9e80b5358c74b14bc2b2dded910d0e3b6304ea27eb587e5f19db0a92e1cbae6a70fb20b4ef05057e4ac

Download Submit
C:\Users\Admin\AppData\Local\Temp\Solara.Dir\VCRUNTIME140.dll

Filesize
99KB

MD5
7a2b8cfcd543f6e4ebca43162b67d610

SHA1
c1c45a326249bf0ccd2be2fbd412f1a62fb67024

SHA256
7d7ca28235fba5603a7f40514a552ac7efaa67a5d5792bb06273916aa8565c5f

SHA512
e38304fb9c5af855c1134f542adf72cde159fab64385533eafa5bb6e374f19b5a29c0cb5516fc5da5c0b5ac47c2f6420792e0ac8ddff11e749832a7b7f3eb5c8

Download Submit
C:\Users\Admin\AppData\Local\Temp\Solara.Dir\WebView2Loader.dll

Filesize
133KB

MD5
a0bd0d1a66e7c7f1d97aedecdafb933f

SHA1
dd109ac34beb8289030e4ec0a026297b793f64a3

SHA256
79d7e45f8631e8d2541d01bfb5a49a3a090be72b3d465389a2d684680fee2e36

SHA512
2a50ae5c7234a44b29f82ebc2e3cfed37bf69294eb00b2dc8905c61259975b2f3a059c67aeab862f002752454d195f7191d9b82b056f6ef22d6e1b0bb3673d50

Download Submit
C:\Users\Admin\AppData\Local\Temp\Solara.Dir\Wpf.Ui.dll

Filesize
5.2MB

MD5
aead90ab96e2853f59be27c4ec1e4853

SHA1
43cdedde26488d3209e17efff9a51e1f944eb35f

SHA256
46cfbe804b29c500ebc0b39372e64c4c8b4f7a8e9b220b5f26a9adf42fcb2aed

SHA512
f5044f2ee63906287460b9adabfcf3c93c60b51c86549e33474c4d7f81c4f86cd03cd611df94de31804c53006977874b8deb67c4bf9ea1c2b70c459b3a44b38d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Solara.Dir\bin\path.txt

Filesize
49B

MD5
6b09afc61af8884f2fc6204922e970be

SHA1
fe3da40f27e8dc2b8e2392c9590666982fff3398

SHA256
f99a87a0c9006940f0d9efa1331d253dcf56016c82f4e266b507c303bb8493a6

SHA512
69ac27dbd690d1919a5da98e5f427328147c18a338596a0cf7ccb2cd09594da388fc4bb5df660bb4ca5a630f3ffc3ee3783b24c262683d2c5992db2f1abca8ea

Download Submit
C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.dll

Filesize
5.5MB

MD5
0a61dd4504bf9ac688cd8350a50fa4be

SHA1
5822f518031d0f64b876ffb318e586a541a606f8

SHA256
5c72240283da6a1e15ba787bb0c6f238e7d603b391a24f1774c61b51137dd3f7

SHA512
6a49ba3c244d48a64edf8b3d93f2f32bf30a270db9a6ad863e452ca6fb9b22537d316a15e766b50afeb4a99343d93989933924d06e1ee0422b2af1acff49dbb0

Download Submit
C:\Users\Admin\AppData\Local\Temp\Solara.Dir\cd57e4c171d6e8f5ea8b8f824a6a7316.exe

Filesize
85KB

MD5
f8f4522d11178a26e97e2046f249dfa7

SHA1
8b591d9a37716e235260fb6b3f601e4ccbebf15d

SHA256
3c372a8919c28dc76414b2f30da423c3e1018b1a8444527949ce20cc3fc93ed0

SHA512
52ea881cad501cf1d5e8ac47355e862ac1bd39cb6e1ff3d362d392b6f2d676e74878832505d17a552aaa3bc8f3977da11fa3f9903722eedd23716fb46ddb7492

Download Submit
C:\Users\Admin\AppData\Local\Temp\Solara.Dir\libcurl.dll

Filesize
522KB

MD5
e31f5136d91bad0fcbce053aac798a30

SHA1
ee785d2546aec4803bcae08cdebfd5d168c42337

SHA256
ee94e2201870536522047e6d7fe7b903a63cd2e13e20c8fffc86d0e95361e671

SHA512
a1543eb1d10d25efb44f9eaa0673c82bfac5173055d04c0f3be4792984635a7c774df57a8e289f840627754a4e595b855d299070d469e0f1e637c3f35274abe6

Download Submit
C:\Users\Admin\AppData\Local\Temp\Solara.Dir\zlib1.dll

Filesize
113KB

MD5
75365924730b0b2c1a6ee9028ef07685

SHA1
a10687c37deb2ce5422140b541a64ac15534250f

SHA256
945e7f5d09938b7769a4e68f4ef01406e5af9f40db952cba05ddb3431dd1911b

SHA512
c1e31c18903e657203ae847c9af601b1eb38efa95cb5fa7c1b75f84a2cba9023d08f1315c9bb2d59b53256dfdb3bac89930252138475491b21749471adc129a1

Download Submit
memory/2544-1499-0x00000134CA6E0000-0x00000134CA6EE000-memory.dmp

Filesize
56KB

Download
memory/2544-1494-0x0000000180000000-0x0000000180CAE000-memory.dmp

Filesize
12.7MB

Download
memory/2544-1479-0x00000134CA2A0000-0x00000134CA31E000-memory.dmp

Filesize
504KB

Download
memory/2544-1476-0x00000134CA360000-0x00000134CA41A000-memory.dmp

Filesize
744KB

Download
memory/2544-1481-0x00000134B18E0000-0x00000134B18EE000-memory.dmp

Filesize
56KB

Download
memory/2544-1506-0x00007FFFEE320000-0x00007FFFEEDE1000-memory.dmp

Filesize
10.8MB

Download
memory/2544-1504-0x0000000180000000-0x0000000180CAE000-memory.dmp

Filesize
12.7MB

Download
memory/2544-1475-0x00000134CA6F0000-0x00000134CAC2C000-memory.dmp

Filesize
5.2MB

Download
memory/2544-1471-0x00007FFFEE323000-0x00007FFFEE325000-memory.dmp

Filesize
8KB

Download
memory/2544-1503-0x00000134CF280000-0x00000134CF332000-memory.dmp

Filesize
712KB

Download
memory/2544-1500-0x0000000180000000-0x0000000180CAE000-memory.dmp

Filesize
12.7MB

Download
memory/2544-1492-0x0000000180000000-0x0000000180CAE000-memory.dmp

Filesize
12.7MB

Download
memory/2544-1493-0x0000000180000000-0x0000000180CAE000-memory.dmp

Filesize
12.7MB

Download
memory/2544-1477-0x00007FFFEE320000-0x00007FFFEEDE1000-memory.dmp

Filesize
10.8MB

Download
memory/2544-1495-0x0000000180000000-0x0000000180CAE000-memory.dmp

Filesize
12.7MB

Download
memory/2544-1501-0x00007FFFF0F60000-0x00007FFFF0F84000-memory.dmp

Filesize
144KB

Download
memory/2544-1497-0x00000134CA660000-0x00000134CA668000-memory.dmp

Filesize
32KB

Download
memory/2544-1472-0x00000134AFBA0000-0x00000134AFBBA000-memory.dmp

Filesize
104KB

Download
memory/2544-1498-0x00000134CEF60000-0x00000134CEF98000-memory.dmp

Filesize
224KB

Download
memory/2660-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

Filesize
4KB

Download
memory/2660-2-0x0000000005630000-0x000000000563A000-memory.dmp

Filesize
40KB

Download
memory/2660-1-0x0000000000C60000-0x0000000000C6A000-memory.dmp

Filesize
40KB

Download
memory/2660-1473-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/2660-3-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/2660-5-0x0000000006130000-0x0000000006142000-memory.dmp

Filesize
72KB

Download