recordbreaker | 2ced9b36b931b73b1d325bececd01f0e4fa6bd0fff98f8b76f2f45b473311cd0

General

Target

zxcvb.exe
Size

768KB
MD5

63645a9e1f5e77ba3c75366f3a14ab87
SHA1

ed1497c47dc283118bbc57d49cd9f354785cf73d
SHA256

2ced9b36b931b73b1d325bececd01f0e4fa6bd0fff98f8b76f2f45b473311cd0
SHA512

4efce16194322c1288603ccd4ab6507fa5905debb137ce9b200e7a76e2c041c2d2aa720061b0679f2dfb5c21a668e12fe5eeb5fe99542f5a88d4bcdf103296f0

Score

10^/10

recordbreaker stealer

Malware Config

Extracted

Family

recordbreaker

C2

http://136.244.65.99/

http://140.82.52.55/

Signatures

RecordBreaker
RecordBreaker is an information stealer capable of downloading and executing secondary payloads written in C++.
stealer recordbreaker
Executes dropped EXE 1 IoCs

Processes:

Fvmidruhvvwkpvmfzdjkqkyhgrn.exe

pid process

396 Fvmidruhvvwkpvmfzdjkqkyhgrn.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:

zxcvb.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation zxcvb.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

zxcvb.exe

description pid process target process

PID 2400 set thread context of 2408 2400 zxcvb.exe zxcvb.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exezxcvb.exe

pid process

1728 powershell.exe
1728 powershell.exe
2400 zxcvb.exe
2400 zxcvb.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

zxcvb.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2400 zxcvb.exe
Token: SeDebugPrivilege 1728 powershell.exe

pid	process
396	Fvmidruhvvwkpvmfzdjkqkyhgrn.exe

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

description	pid	process	target process
PID 2400 set thread context of 2408	2400	zxcvb.exe	zxcvb.exe

pid	process
1728	powershell.exe
1728	powershell.exe
2400	zxcvb.exe
2400	zxcvb.exe

description	pid	process
Token: SeDebugPrivilege	2400	zxcvb.exe
Token: SeDebugPrivilege	1728	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

zxcvb.exe

description	pid	process	target process
PID 2400 wrote to memory of 1728	2400	zxcvb.exe	powershell.exe
PID 2400 wrote to memory of 1728	2400	zxcvb.exe	powershell.exe
PID 2400 wrote to memory of 1728	2400	zxcvb.exe	powershell.exe
PID 2400 wrote to memory of 396	2400	zxcvb.exe	Fvmidruhvvwkpvmfzdjkqkyhgrn.exe
PID 2400 wrote to memory of 396	2400	zxcvb.exe	Fvmidruhvvwkpvmfzdjkqkyhgrn.exe
PID 2400 wrote to memory of 396	2400	zxcvb.exe	Fvmidruhvvwkpvmfzdjkqkyhgrn.exe
PID 2400 wrote to memory of 2408	2400	zxcvb.exe	zxcvb.exe
PID 2400 wrote to memory of 2408	2400	zxcvb.exe	zxcvb.exe
PID 2400 wrote to memory of 2408	2400	zxcvb.exe	zxcvb.exe
PID 2400 wrote to memory of 2408	2400	zxcvb.exe	zxcvb.exe
PID 2400 wrote to memory of 2408	2400	zxcvb.exe	zxcvb.exe
PID 2400 wrote to memory of 2408	2400	zxcvb.exe	zxcvb.exe
PID 2400 wrote to memory of 2408	2400	zxcvb.exe	zxcvb.exe
PID 2400 wrote to memory of 2408	2400	zxcvb.exe	zxcvb.exe
PID 2400 wrote to memory of 2408	2400	zxcvb.exe	zxcvb.exe

C:\Users\Admin\AppData\Local\Temp\zxcvb.exe
"C:\Users\Admin\AppData\Local\Temp\zxcvb.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2400

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwADsAIABTAGUAdAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAGEAdABoACAAJwBDADoAXAAnAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1728

C:\Users\Admin\AppData\Local\Temp\Fvmidruhvvwkpvmfzdjkqkyhgrn.exe
"C:\Users\Admin\AppData\Local\Temp\Fvmidruhvvwkpvmfzdjkqkyhgrn.exe"
2⤵
- Executes dropped EXE
PID:396

C:\Users\Admin\AppData\Local\Temp\zxcvb.exe
C:\Users\Admin\AppData\Local\Temp\zxcvb.exe
2⤵
PID:2408

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Fvmidruhvvwkpvmfzdjkqkyhgrn.exe
Filesize
21KB

MD5
f35a031075f711d05262e547d028ae86

SHA1
9c9e3bdf907fcfa959910cd9c752e297765ccf80

SHA256
3c0c5786499c54c8f99e689f7e1bfc129e4d10c3de58c7917fc73044e12346b9

SHA512
ff5235e388cc82f45e2dda4e93b66f752789b6cda1b6a4076af0171ab88ea422e8309a0f85abfa2d2e8ed5a760c3d83c4ec13fea9b566c0dd470a5c64c1a8a30

Download Submit
C:\Users\Admin\AppData\Local\Temp\Fvmidruhvvwkpvmfzdjkqkyhgrn.exe
Filesize
21KB

MD5
f35a031075f711d05262e547d028ae86

SHA1
9c9e3bdf907fcfa959910cd9c752e297765ccf80

SHA256
3c0c5786499c54c8f99e689f7e1bfc129e4d10c3de58c7917fc73044e12346b9

SHA512
ff5235e388cc82f45e2dda4e93b66f752789b6cda1b6a4076af0171ab88ea422e8309a0f85abfa2d2e8ed5a760c3d83c4ec13fea9b566c0dd470a5c64c1a8a30

Download Submit
memory/396-153-0x0000000000000000-mapping.dmp

Download
memory/396-156-0x0000000000B00000-0x0000000000B0A000-memory.dmp

Filesize
40KB

Download
memory/1728-144-0x0000000006050000-0x000000000606A000-memory.dmp

Filesize
104KB

Download
memory/1728-147-0x0000000006270000-0x000000000628E000-memory.dmp

Filesize
120KB

Download
memory/1728-136-0x0000000000000000-mapping.dmp

Download
memory/1728-137-0x00000000022F0000-0x0000000002326000-memory.dmp

Filesize
216KB

Download
memory/1728-138-0x0000000004F80000-0x00000000055A8000-memory.dmp

Filesize
6.2MB

Download
memory/1728-139-0x0000000004D20000-0x0000000004D42000-memory.dmp

Filesize
136KB

Download
memory/1728-140-0x0000000004EC0000-0x0000000004F26000-memory.dmp

Filesize
408KB

Download
memory/1728-141-0x0000000005620000-0x0000000005686000-memory.dmp

Filesize
408KB

Download
memory/1728-142-0x0000000005BF0000-0x0000000005C0E000-memory.dmp

Filesize
120KB

Download
memory/1728-143-0x0000000007310000-0x000000000798A000-memory.dmp

Filesize
6.5MB

Download
memory/1728-152-0x0000000006F60000-0x0000000006F68000-memory.dmp

Filesize
32KB

Download
memory/1728-145-0x0000000006290000-0x00000000062C2000-memory.dmp

Filesize
200KB

Download
memory/1728-146-0x00000000708D0000-0x000000007091C000-memory.dmp

Filesize
304KB

Download
memory/1728-151-0x0000000006F70000-0x0000000006F8A000-memory.dmp

Filesize
104KB

Download
memory/1728-148-0x00000000049C0000-0x00000000049CA000-memory.dmp

Filesize
40KB

Download
memory/1728-149-0x00000000071A0000-0x0000000007236000-memory.dmp

Filesize
600KB

Download
memory/1728-150-0x0000000007140000-0x000000000714E000-memory.dmp

Filesize
56KB

Download
memory/2400-135-0x0000000005A70000-0x0000000005B02000-memory.dmp

Filesize
584KB

Download
memory/2400-130-0x00000000009B0000-0x0000000000A76000-memory.dmp

Filesize
792KB

Download
memory/2400-134-0x00000000011A0000-0x00000000011BE000-memory.dmp

Filesize
120KB

Download
memory/2400-133-0x00000000013B0000-0x0000000001462000-memory.dmp

Filesize
712KB

Download
memory/2400-132-0x0000000005800000-0x0000000005850000-memory.dmp

Filesize
320KB

Download
memory/2400-131-0x00000000053F0000-0x0000000005466000-memory.dmp

Filesize
472KB

Download
memory/2408-157-0x0000000000000000-mapping.dmp

Download
memory/2408-158-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2408-160-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2408-161-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

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