recordbreaker | 3b93d09292f2f38a0405954ff5c9a4697a2425fbcfad55d61782d4d055b2d9f7

Analysis

max time kernel
503s
max time network
508s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
30-06-2022 09:35

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Setup.exe
Size

400.2MB
MD5

8c56d9ea1ae002bb3d998069fbd81a31
SHA1

d8fd68e3344f490826afd859899b16477e879c78
SHA256

a62628c4a68d9261ab6fe875a79f6876ef1089b5b68ba57f61c65f3854aeef73
SHA512

4d493baf3787da147a88bab6da07faaef1ee7ed5381e3a9caf99d25d4db969829e79720c5f0acb8eeebe01d3efaea9a08ee9e7953b50b9e9a8cf615242657c6f

Score

10^/10

recordbreaker discovery evasion spyware stealer suricata themida trojan

Malware Config

Extracted

Family

recordbreaker

http://45.140.146.30/

http://45.133.216.200/

Signatures

RecordBreaker
RecordBreaker is an information stealer capable of downloading and executing secondary payloads written in C++.
stealer recordbreaker
suricata: ET MALWARE Generic .bin download from Dotted Quad
suricata: ET MALWARE Generic .bin download from Dotted Quad
suricata
suricata: ET MALWARE Generic Stealer Config Download Request
suricata: ET MALWARE Generic Stealer Config Download Request
suricata
suricata: ET MALWARE Win32/RecordBreaker CnC Checkin
suricata: ET MALWARE Win32/RecordBreaker CnC Checkin
suricata
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

Setup.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Setup.exe
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

k8TE8k5f.execellexprev.exe

pid process

4004 k8TE8k5f.exe
4000 cellexprev.exe

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

pid	process
4004	k8TE8k5f.exe
4000	cellexprev.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:

Setup.exe

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

Processes:

Setup.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation Setup.exe
Loads dropped DLL 3 IoCs

Processes:

Setup.exe

pid process

3020 Setup.exe
3020 Setup.exe
3020 Setup.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
T1081

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	Setup.exe

pid	process
3020	Setup.exe
3020	Setup.exe
3020	Setup.exe

Themida packer 4 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/3020-130-0x0000000000D30000-0x0000000001310000-memory.dmp	themida
behavioral2/memory/3020-131-0x0000000000D30000-0x0000000001310000-memory.dmp	themida
behavioral2/memory/3020-133-0x0000000000D30000-0x0000000001310000-memory.dmp	themida
behavioral2/memory/3020-141-0x0000000000D30000-0x0000000001310000-memory.dmp	themida

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

Data from Local System
T1005

Credentials in Files
T1081
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:

Setup.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Setup.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

Processes:

Setup.exek8TE8k5f.execellexprev.exe

pid process

3020 Setup.exe
4004 k8TE8k5f.exe
4004 k8TE8k5f.exe
4000 cellexprev.exe
4000 cellexprev.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

2040 schtasks.exe
3792 schtasks.exe
5036 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

Setup.exek8TE8k5f.execellexprev.exe

pid process

3020 Setup.exe
3020 Setup.exe
4004 k8TE8k5f.exe
4004 k8TE8k5f.exe
4000 cellexprev.exe
4000 cellexprev.exe

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

pid	process
3020	Setup.exe
4004	k8TE8k5f.exe
4004	k8TE8k5f.exe
4000	cellexprev.exe
4000	cellexprev.exe

pid	process
2040	schtasks.exe
3792	schtasks.exe
5036	schtasks.exe

pid	process
3020	Setup.exe
3020	Setup.exe
4004	k8TE8k5f.exe
4004	k8TE8k5f.exe
4000	cellexprev.exe
4000	cellexprev.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Setup.exek8TE8k5f.execellexprev.exe

description	pid	process	target process
PID 3020 wrote to memory of 4004	3020	Setup.exe	k8TE8k5f.exe
PID 3020 wrote to memory of 4004	3020	Setup.exe	k8TE8k5f.exe
PID 3020 wrote to memory of 4004	3020	Setup.exe	k8TE8k5f.exe
PID 4004 wrote to memory of 2040	4004	k8TE8k5f.exe	schtasks.exe
PID 4004 wrote to memory of 2040	4004	k8TE8k5f.exe	schtasks.exe
PID 4004 wrote to memory of 2040	4004	k8TE8k5f.exe	schtasks.exe
PID 4004 wrote to memory of 1712	4004	k8TE8k5f.exe	schtasks.exe
PID 4004 wrote to memory of 1712	4004	k8TE8k5f.exe	schtasks.exe
PID 4004 wrote to memory of 1712	4004	k8TE8k5f.exe	schtasks.exe
PID 4004 wrote to memory of 3792	4004	k8TE8k5f.exe	schtasks.exe
PID 4004 wrote to memory of 3792	4004	k8TE8k5f.exe	schtasks.exe
PID 4004 wrote to memory of 3792	4004	k8TE8k5f.exe	schtasks.exe
PID 4000 wrote to memory of 5036	4000	cellexprev.exe	schtasks.exe
PID 4000 wrote to memory of 5036	4000	cellexprev.exe	schtasks.exe
PID 4000 wrote to memory of 5036	4000	cellexprev.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3020

C:\Users\Admin\AppData\Roaming\k8TE8k5f.exe
"C:\Users\Admin\AppData\Roaming\k8TE8k5f.exe"
2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4004

C:\Windows\SysWOW64\schtasks.exe
/C /create /F /sc minute /mo 5 /tn "ExcelUpdateTaskUA{T0U3T7L6V-L9N0-X6X8D-V5S0-X3L4FL9G9S}" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\cellexprev.exe"
3⤵
- Creates scheduled task(s)
PID:2040

C:\Windows\SysWOW64\schtasks.exe
/C /Query /XML /TN "ExcelUpdateTaskUA{T0U3T7L6V-L9N0-X6X8D-V5S0-X3L4FL9G9S}"
3⤵
PID:1712

C:\Windows\SysWOW64\schtasks.exe
/C /create /F /tn "ExcelUpdateTaskUA{T0U3T7L6V-L9N0-X6X8D-V5S0-X3L4FL9G9S}" /XML "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\yqtfncwkobl.xml"
3⤵
- Creates scheduled task(s)
PID:3792

C:\Users\Admin\AppData\Roaming\Microsoft\Excel\cellexprev.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Excel\cellexprev.exe
1⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4000

C:\Windows\SysWOW64\schtasks.exe
/C /create /F /sc minute /mo 5 /tn "ExcelUpdateTaskUA{T0U3T7L6V-L9N0-X6X8D-V5S0-X3L4FL9G9S}" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\cellexprev.exe"
2⤵
- Creates scheduled task(s)
PID:5036

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\mozglue.dll
Filesize
612KB

MD5
f07d9977430e762b563eaadc2b94bbfa

SHA1
da0a05b2b8d269fb73558dfcf0ed5c167f6d3877

SHA256
4191faf7e5eb105a0f4c5c6ed3e9e9c71014e8aa39bbee313bc92d1411e9e862

SHA512
6afd512e4099643bba3fc7700dd72744156b78b7bda10263ba1f8571d1e282133a433215a9222a7799f9824f244a2bc80c2816a62de1497017a4b26d562b7eaf

Download Submit
C:\Users\Admin\AppData\LocalLow\nss3.dll
Filesize
1.9MB

MD5
f67d08e8c02574cbc2f1122c53bfb976

SHA1
6522992957e7e4d074947cad63189f308a80fcf2

SHA256
c65b7afb05ee2b2687e6280594019068c3d3829182dfe8604ce4adf2116cc46e

SHA512
2e9d0a211d2b085514f181852fae6e7ca6aed4d29f396348bedb59c556e39621810a9a74671566a49e126ec73a60d0f781fa9085eb407df1eefd942c18853be5

Download Submit
C:\Users\Admin\AppData\LocalLow\sqlite3.dll
Filesize
1.0MB

MD5
dbf4f8dcefb8056dc6bae4b67ff810ce

SHA1
bbac1dd8a07c6069415c04b62747d794736d0689

SHA256
47b64311719000fa8c432165a0fdcdfed735d5b54977b052de915b1cbbbf9d68

SHA512
b572ca2f2e4a5cc93e4fcc7a18c0ae6df888aa4c55bc7da591e316927a4b5cfcbdda6e60018950be891ff3b26f470cc5cce34d217c2d35074322ab84c32a25d1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Excel\cellexprev.exe
Filesize
9.4MB

MD5
2481b1a178d02579fae34366bf6b37b7

SHA1
353a24cbebfd5ef95b127a3b41be8100d5eaa45c

SHA256
3cea6eaf23e94e38d790a9ccf43e490f8ad3da3eb920e3a967d18947905b60b7

SHA512
f952943789c7eee14e5f2e9296d6646f42739dd9c1d086e24e02d7edb4f712d55be9c683abcf1a6b2d0eedef49c588c17635e0ca16b16f06ef8952ad652b4f3e

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Excel\cellexprev.exe
Filesize
9.4MB

MD5
2481b1a178d02579fae34366bf6b37b7

SHA1
353a24cbebfd5ef95b127a3b41be8100d5eaa45c

SHA256
3cea6eaf23e94e38d790a9ccf43e490f8ad3da3eb920e3a967d18947905b60b7

SHA512
f952943789c7eee14e5f2e9296d6646f42739dd9c1d086e24e02d7edb4f712d55be9c683abcf1a6b2d0eedef49c588c17635e0ca16b16f06ef8952ad652b4f3e

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Excel\yqtfncwkobl.xml
Filesize
1KB

MD5
8909198e055ebad8349def5637ebbaa3

SHA1
6194f749fcccd212ce7868613ed8877775d0b2f6

SHA256
06734e0aeb8b66a2163e27dcd8e1e3e2e791d000bc817b79b4ae9cf7b1b74994

SHA512
928b77cf253a3b0ae928d73eb0aed3a5d4a2b4e5136da3fddd0e1248fdc52bfee20dee1a9d2c1e5d21572c9f8bd06bdfc216749a1b260b875194a3fb6e5d1ab0

Download Submit
C:\Users\Admin\AppData\Roaming\k8TE8k5f.exe
Filesize
9.4MB

MD5
2481b1a178d02579fae34366bf6b37b7

SHA1
353a24cbebfd5ef95b127a3b41be8100d5eaa45c

SHA256
3cea6eaf23e94e38d790a9ccf43e490f8ad3da3eb920e3a967d18947905b60b7

SHA512
f952943789c7eee14e5f2e9296d6646f42739dd9c1d086e24e02d7edb4f712d55be9c683abcf1a6b2d0eedef49c588c17635e0ca16b16f06ef8952ad652b4f3e

Download Submit
C:\Users\Admin\AppData\Roaming\k8TE8k5f.exe
Filesize
9.4MB

MD5
2481b1a178d02579fae34366bf6b37b7

SHA1
353a24cbebfd5ef95b127a3b41be8100d5eaa45c

SHA256
3cea6eaf23e94e38d790a9ccf43e490f8ad3da3eb920e3a967d18947905b60b7

SHA512
f952943789c7eee14e5f2e9296d6646f42739dd9c1d086e24e02d7edb4f712d55be9c683abcf1a6b2d0eedef49c588c17635e0ca16b16f06ef8952ad652b4f3e

Download Submit
memory/1712-145-0x0000000000000000-mapping.dmp

Download
memory/2040-144-0x0000000000000000-mapping.dmp

Download
memory/3020-132-0x00000000773E0000-0x0000000077583000-memory.dmp

Filesize
1.6MB

Download
memory/3020-141-0x0000000000D30000-0x0000000001310000-memory.dmp

Filesize
5.9MB

Download
memory/3020-142-0x00000000773E0000-0x0000000077583000-memory.dmp

Filesize
1.6MB

Download
memory/3020-134-0x00000000773E0000-0x0000000077583000-memory.dmp

Filesize
1.6MB

Download
memory/3020-133-0x0000000000D30000-0x0000000001310000-memory.dmp

Filesize
5.9MB

Download
memory/3020-130-0x0000000000D30000-0x0000000001310000-memory.dmp

Filesize
5.9MB

Download
memory/3020-131-0x0000000000D30000-0x0000000001310000-memory.dmp

Filesize
5.9MB

Download
memory/3792-146-0x0000000000000000-mapping.dmp

Download
memory/4000-154-0x00000000004C0000-0x00000000011F4000-memory.dmp

Filesize
13.2MB

Download
memory/4000-152-0x00000000004C0000-0x00000000011F4000-memory.dmp

Filesize
13.2MB

Download
memory/4004-143-0x0000000000F80000-0x0000000001CB4000-memory.dmp

Filesize
13.2MB

Download
memory/4004-149-0x0000000000F80000-0x0000000001CB4000-memory.dmp

Filesize
13.2MB

Download
memory/4004-147-0x0000000000F80000-0x0000000001CB4000-memory.dmp

Filesize
13.2MB

Download
memory/4004-138-0x0000000000000000-mapping.dmp

Download
memory/5036-153-0x0000000000000000-mapping.dmp

Download