9df2f1f389119479fd7685350f70f2da11f541b79d1571fc51b67f3d183821c1

General

Target

Avrora.exe
Size

4.7MB
MD5

15f90922fa11ba75c875688b66f104ba
SHA1

9db2d852aca4a3336e93ea9c1d79f8008484fb2e
SHA256

7b6fe3ae7047cd64cdcffeda0ee07efff41fb5a503862ddb0d330a5c99995dc8
SHA512

291f2ddf503cd1bcdec2c106ec71050459cbc0fc14fca63cc691b2f73d79e3921426be7bdc0822a632f17271fa0d14e970ebb178d9c5bb5aa09696576d092b1c
SSDEEP

98304:fLdfYRkV/KjZ1DNSR5EfrshLhCoMsaIO9YBxPeJ2wHMhY6S30xc:fx1V/KjvhSRCTjoMsHxeJ2ws+63xc

Score

9^/10

discovery evasion spyware stealer 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

Processes:

Avrora.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Avrora.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Avrora.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

Processes:

Avrora.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Avrora.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Avrora.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/3380-10-0x0000000000E30000-0x0000000001976000-memory.dmp	themida
behavioral1/memory/3380-11-0x0000000000E30000-0x0000000001976000-memory.dmp	themida
behavioral1/memory/3380-51-0x0000000000E30000-0x0000000001976000-memory.dmp	themida

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Avrora.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Avrora.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

Avrora.exe

pid process

3380 Avrora.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Avrora.exe

pid	process
3380	Avrora.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

Processes:

Avrora.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\F1A578C4CB5DE79A370893983FD4DA8B67B2B064	Avrora.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\F1A578C4CB5DE79A370893983FD4DA8B67B2B064\Blob = 0b000000010000004800000054006900740061006e00690075006d00200052006f006f007400200043006500720074006900660069006300610074006500200041007500740068006f00720069007400790000000200000001000000cc0000001c0000006c00000001000000000000000000000000000000010000007b00340031003700340034004200450034002d0031003100430035002d0034003900340043002d0041003200310033002d004200410030004300450039003400340039003300380045007d00000000004d006900630072006f0073006f0066007400200045006e00680061006e006300650064002000430072007900700074006f0067007200610070006800690063002000500072006f00760069006400650072002000760031002e00300000000000030000000100000014000000f1a578c4cb5de79a370893983fd4da8b67b2b06420000000010000000a03000030820306308201eea003020102020867f7beb96a4c2798300d06092a864886f70d01010b0500302e312c302a06035504030c23546974616e69756d20526f6f7420436572746966696361746520417574686f72697479301e170d3233303331343130333532305a170d3236303631373130333532305a302e312c302a06035504030c23546974616e69756d20526f6f7420436572746966696361746520417574686f7269747930820122300d06092a864886f70d01010105000382010f003082010a028201010086e4577a5861ce819177d005fa51d5515a936c610ccfcbde5332cd151da647ee881a245c9b02833b02af3d76fe20bd3bfaf7a20973e72ebd9440d09d8c3d2713bdf0d09feb9532acd7a42da2a952daa86a2a88ee427d30959d90bfba05276aa02998a6986fc01306629b79b8405d1f1fa6d9a42f827afc7566340dc2de27012b94bb4a27b3cb1c219a3cb2c14203f34451bd626520edd4dbcc414f593f2acbc48479f7143cbe139cfd129c913e5303dc20f94c44358901b69a848d7ea02e308a311560ac00ae009a29109aeed9713dd8919b97ed598058e17f0726c7a020f710abc06291dfaaf181c6be6a76c89cb68eb0b0ec1cd95f326c7e55588bfd76c5190203010001a328302630130603551d25040c300a06082b06010505070301300f0603551d130101ff040530030101ff300d06092a864886f70d01010b0500038201010070851293d757e982797dc5f7f27da894ef0cdb329f06a6096e0cf604b0e54711560ef40f5282082e210f55a3db41f312548b7611f5f0dacea3c78b13f6fc243c02b106665be69e184088415b273999b877bee353a248cec7eeb5a095c2174bc9526cafe3372c59dbfbe758134ed351e5147273fec68577ae4552a6f99ac80ca8d0ee422af528858c6be81cb0a8031ab0ae83c0eb5564f4e87a5c06295d3903eee2fdf92d62a7f4d4054deaa79bcaebda4e8b1a6efd42aef9d01c7075728cb13aa8557c85a72532b5e2d6c3e55041c9867ca8f562bbd2ab0c3710d83173ec3781d1dcaac5c6e07ee726624dfdc5814cffd336e17932f89beb9cf7fdbee9bebf61	Avrora.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

Avrora.exe

pid process

3380 Avrora.exe
3380 Avrora.exe
3380 Avrora.exe
3380 Avrora.exe
3380 Avrora.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Avrora.exe

description pid process

Token: SeDebugPrivilege 3380 Avrora.exe

pid	process
3380	Avrora.exe
3380	Avrora.exe
3380	Avrora.exe
3380	Avrora.exe
3380	Avrora.exe

description	pid	process
Token: SeDebugPrivilege	3380	Avrora.exe

C:\Users\Admin\AppData\Local\Temp\Avrora.exe
"C:\Users\Admin\AppData\Local\Temp\Avrora.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Tmp5023.tmp
Filesize
2KB

MD5
1420d30f964eac2c85b2ccfe968eebce

SHA1
bdf9a6876578a3e38079c4f8cf5d6c79687ad750

SHA256
f3327793e3fd1f3f9a93f58d033ed89ce832443e2695beca9f2b04adba049ed9

SHA512
6fcb6ce148e1e246d6805502d4914595957061946751656567a5013d96033dd1769a22a87c45821e7542cde533450e41182cee898cd2ccf911c91bc4822371a8

Download Submit
memory/3380-31-0x0000000007070000-0x00000000070E6000-memory.dmp

Filesize
472KB

Download
memory/3380-51-0x0000000000E30000-0x0000000001976000-memory.dmp

Filesize
11.3MB

Download
memory/3380-1-0x0000000077230000-0x0000000077231000-memory.dmp

Filesize
4KB

Download
memory/3380-5-0x0000000077210000-0x0000000077300000-memory.dmp

Filesize
960KB

Download
memory/3380-6-0x0000000077210000-0x0000000077300000-memory.dmp

Filesize
960KB

Download
memory/3380-3-0x0000000077210000-0x0000000077300000-memory.dmp

Filesize
960KB

Download
memory/3380-7-0x0000000077210000-0x0000000077300000-memory.dmp

Filesize
960KB

Download
memory/3380-10-0x0000000000E30000-0x0000000001976000-memory.dmp

Filesize
11.3MB

Download
memory/3380-11-0x0000000000E30000-0x0000000001976000-memory.dmp

Filesize
11.3MB

Download
memory/3380-12-0x0000000006900000-0x0000000006EA4000-memory.dmp

Filesize
5.6MB

Download
memory/3380-13-0x0000000006350000-0x00000000063E2000-memory.dmp

Filesize
584KB

Download
memory/3380-14-0x0000000006310000-0x000000000631A000-memory.dmp

Filesize
40KB

Download
memory/3380-4-0x0000000077210000-0x0000000077300000-memory.dmp

Filesize
960KB

Download
memory/3380-0-0x0000000000E30000-0x0000000001976000-memory.dmp

Filesize
11.3MB

Download
memory/3380-44-0x0000000008D30000-0x0000000008D80000-memory.dmp

Filesize
320KB

Download
memory/3380-35-0x0000000008100000-0x0000000008718000-memory.dmp

Filesize
6.1MB

Download
memory/3380-36-0x0000000007C50000-0x0000000007D5A000-memory.dmp

Filesize
1.0MB

Download
memory/3380-37-0x0000000007B90000-0x0000000007BA2000-memory.dmp

Filesize
72KB

Download
memory/3380-38-0x0000000007BF0000-0x0000000007C2C000-memory.dmp

Filesize
240KB

Download
memory/3380-39-0x0000000007D60000-0x0000000007DAC000-memory.dmp

Filesize
304KB

Download
memory/3380-40-0x0000000007EA0000-0x0000000007F06000-memory.dmp

Filesize
408KB

Download
memory/3380-32-0x0000000007AC0000-0x0000000007ADE000-memory.dmp

Filesize
120KB

Download
memory/3380-45-0x0000000009590000-0x0000000009752000-memory.dmp

Filesize
1.8MB

Download
memory/3380-46-0x0000000009C90000-0x000000000A1BC000-memory.dmp

Filesize
5.2MB

Download
memory/3380-47-0x0000000000E30000-0x0000000001976000-memory.dmp

Filesize
11.3MB

Download
memory/3380-50-0x0000000077210000-0x0000000077300000-memory.dmp

Filesize
960KB

Download
memory/3380-2-0x0000000077210000-0x0000000077300000-memory.dmp

Filesize
960KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads