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

pid	Process
4600	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

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

description	pid	Process	procid_target
PID 3124 set thread context of 3780	3124	zxcvb.exe	83

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

pid	Process
4236	powershell.exe
4236	powershell.exe
3124	zxcvb.exe
3124	zxcvb.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3124	zxcvb.exe
Token: SeDebugPrivilege	4236	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3124 wrote to memory of 4236	3124	zxcvb.exe	80
PID 3124 wrote to memory of 4236	3124	zxcvb.exe	80
PID 3124 wrote to memory of 4236	3124	zxcvb.exe	80
PID 3124 wrote to memory of 4600	3124	zxcvb.exe	82
PID 3124 wrote to memory of 4600	3124	zxcvb.exe	82
PID 3124 wrote to memory of 4600	3124	zxcvb.exe	82
PID 3124 wrote to memory of 3780	3124	zxcvb.exe	83
PID 3124 wrote to memory of 3780	3124	zxcvb.exe	83
PID 3124 wrote to memory of 3780	3124	zxcvb.exe	83
PID 3124 wrote to memory of 3780	3124	zxcvb.exe	83
PID 3124 wrote to memory of 3780	3124	zxcvb.exe	83
PID 3124 wrote to memory of 3780	3124	zxcvb.exe	83
PID 3124 wrote to memory of 3780	3124	zxcvb.exe	83
PID 3124 wrote to memory of 3780	3124	zxcvb.exe	83
PID 3124 wrote to memory of 3780	3124	zxcvb.exe	83

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:3124
- 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:4236
- C:\Users\Admin\AppData\Local\Temp\Fvmidruhvvwkpvmfzdjkqkyhgrn.exe
  "C:\Users\Admin\AppData\Local\Temp\Fvmidruhvvwkpvmfzdjkqkyhgrn.exe"
  2⤵
  - Executes dropped EXE
  PID:4600
- C:\Users\Admin\AppData\Local\Temp\zxcvb.exe
  C:\Users\Admin\AppData\Local\Temp\zxcvb.exe
  2⤵
  PID:3780

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

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/3124-130-0x0000000000B60000-0x0000000000C26000-memory.dmp

Filesize
792KB

Download
memory/3124-131-0x0000000005480000-0x00000000054F6000-memory.dmp

Filesize
472KB

Download
memory/3124-132-0x0000000005850000-0x00000000058A0000-memory.dmp

Filesize
320KB

Download
memory/3124-133-0x00000000058A0000-0x0000000005952000-memory.dmp

Filesize
712KB

Download
memory/3124-134-0x0000000001350000-0x000000000136E000-memory.dmp

Filesize
120KB

Download
memory/3124-135-0x0000000005C20000-0x0000000005CB2000-memory.dmp

Filesize
584KB

Download
memory/3780-161-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3780-160-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3780-158-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4236-144-0x0000000006090000-0x00000000060AA000-memory.dmp

Filesize
104KB

Download
memory/4236-151-0x0000000007200000-0x000000000721A000-memory.dmp

Filesize
104KB

Download
memory/4236-142-0x0000000005B20000-0x0000000005B3E000-memory.dmp

Filesize
120KB

Download
memory/4236-145-0x0000000006E10000-0x0000000006E42000-memory.dmp

Filesize
200KB

Download
memory/4236-146-0x000000006FFE0000-0x000000007002C000-memory.dmp

Filesize
304KB

Download
memory/4236-147-0x0000000004870000-0x000000000488E000-memory.dmp

Filesize
120KB

Download
memory/4236-148-0x0000000006260000-0x000000000626A000-memory.dmp

Filesize
40KB

Download
memory/4236-149-0x0000000007140000-0x00000000071D6000-memory.dmp

Filesize
600KB

Download
memory/4236-150-0x00000000070F0000-0x00000000070FE000-memory.dmp

Filesize
56KB

Download
memory/4236-143-0x0000000007490000-0x0000000007B0A000-memory.dmp

Filesize
6.5MB

Download
memory/4236-152-0x00000000071E0000-0x00000000071E8000-memory.dmp

Filesize
32KB

Download
memory/4236-141-0x0000000005670000-0x00000000056D6000-memory.dmp

Filesize
408KB

Download
memory/4236-140-0x0000000005580000-0x00000000055E6000-memory.dmp

Filesize
408KB

Download
memory/4236-137-0x0000000000DD0000-0x0000000000E06000-memory.dmp

Filesize
216KB

Download
memory/4236-139-0x0000000005390000-0x00000000053B2000-memory.dmp

Filesize
136KB

Download
memory/4236-138-0x0000000004C70000-0x0000000005298000-memory.dmp

Filesize
6.2MB

Download
memory/4600-156-0x0000000000BE0000-0x0000000000BEA000-memory.dmp

Filesize
40KB

Download

Analysis

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