chinese_generic_botnet | 2532854386c2ac90a742a4cb593fa2502f261ff2909444de7415ea175285b89b

General

Target

E945.exe
Size

780KB
MD5

b2d8e3fc81ee69664d1221439ffd9ee8
SHA1

c325fe65f692c8ee023f12f41cbb0663d658b917
SHA256

2532854386c2ac90a742a4cb593fa2502f261ff2909444de7415ea175285b89b
SHA512

d31b225f989b75c02e09660aa5ec70e6a92b901567c823b38a726ed9735d60df755fbd9f80fb12a34e835253707a3ba8e0318f233b54794e55b79f785287976f

Score

10^/10

chinese_generic_botnet redline bliss karma botnet discovery infostealer persistence spyware stealer

Malware Config

Extracted

Family

redline

Botnet

Bliss

C2

185.237.98.178:62607

Extracted

Family

redline

Botnet

karma

C2

94.103.9.133:39323

Signatures

Generic Chinese Botnet
A botnet originating from China which is currently unnamed publicly.
botnet chinese_generic_botnet
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine Payload 4 IoCs

resource	yara_rule
behavioral2/memory/3024-125-0x0000000002370000-0x0000000002393000-memory.dmp	family_redline
behavioral2/memory/696-126-0x0000000002200000-0x000000000221F000-memory.dmp	family_redline
behavioral2/memory/3024-129-0x00000000024F0000-0x0000000002512000-memory.dmp	family_redline
behavioral2/memory/696-130-0x00000000022D0000-0x00000000022EE000-memory.dmp	family_redline

Chinese Botnet Payload 1 IoCs

botnet

resource	yara_rule
behavioral2/memory/436-157-0x0000000010000000-0x0000000010018000-memory.dmp	unk_chinese_botnet

Executes dropped EXE 3 IoCs

pid	Process
696	SindonsWelfare_2021-09-26_15-02.exe
3024	SolanumsYoghurt_2021-09-26_14-52.exe
436	fbf.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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Uuuocai.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fbf.exe"	fbf.exe

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

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\B:	fbf.exe
File opened (read-only)	\??\O:	fbf.exe
File opened (read-only)	\??\P:	fbf.exe
File opened (read-only)	\??\R:	fbf.exe
File opened (read-only)	\??\S:	fbf.exe
File opened (read-only)	\??\W:	fbf.exe
File opened (read-only)	\??\Z:	fbf.exe
File opened (read-only)	\??\K:	fbf.exe
File opened (read-only)	\??\M:	fbf.exe
File opened (read-only)	\??\T:	fbf.exe
File opened (read-only)	\??\E:	fbf.exe
File opened (read-only)	\??\G:	fbf.exe
File opened (read-only)	\??\N:	fbf.exe
File opened (read-only)	\??\Y:	fbf.exe
File opened (read-only)	\??\V:	fbf.exe
File opened (read-only)	\??\F:	fbf.exe
File opened (read-only)	\??\H:	fbf.exe
File opened (read-only)	\??\I:	fbf.exe
File opened (read-only)	\??\J:	fbf.exe
File opened (read-only)	\??\L:	fbf.exe
File opened (read-only)	\??\Q:	fbf.exe
File opened (read-only)	\??\U:	fbf.exe
File opened (read-only)	\??\X:	fbf.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	fbf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	fbf.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
436	fbf.exe
436	fbf.exe
436	fbf.exe
436	fbf.exe
3024	SolanumsYoghurt_2021-09-26_14-52.exe
3024	SolanumsYoghurt_2021-09-26_14-52.exe
696	SindonsWelfare_2021-09-26_15-02.exe
696	SindonsWelfare_2021-09-26_15-02.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	696	SindonsWelfare_2021-09-26_15-02.exe
Token: SeDebugPrivilege	3024	SolanumsYoghurt_2021-09-26_14-52.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
436	fbf.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4016 wrote to memory of 696	4016	E945.exe	68
PID 4016 wrote to memory of 696	4016	E945.exe	68
PID 4016 wrote to memory of 696	4016	E945.exe	68
PID 4016 wrote to memory of 3024	4016	E945.exe	69
PID 4016 wrote to memory of 3024	4016	E945.exe	69
PID 4016 wrote to memory of 3024	4016	E945.exe	69
PID 4016 wrote to memory of 436	4016	E945.exe	72
PID 4016 wrote to memory of 436	4016	E945.exe	72
PID 4016 wrote to memory of 436	4016	E945.exe	72

C:\Users\Admin\AppData\Local\Temp\E945.exe
"C:\Users\Admin\AppData\Local\Temp\E945.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4016
- C:\Users\Admin\AppData\Local\Temp\SindonsWelfare_2021-09-26_15-02.exe
  "C:\Users\Admin\AppData\Local\Temp\SindonsWelfare_2021-09-26_15-02.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:696
- C:\Users\Admin\AppData\Local\Temp\SolanumsYoghurt_2021-09-26_14-52.exe
  "C:\Users\Admin\AppData\Local\Temp\SolanumsYoghurt_2021-09-26_14-52.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3024
- C:\Users\Admin\AppData\Local\Temp\fbf.exe
  "C:\Users\Admin\AppData\Local\Temp\fbf.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Enumerates connected drives
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:436

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/436-157-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/436-138-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/436-136-0x0000000002170000-0x000000000222C000-memory.dmp

Filesize
752KB

Download
memory/696-164-0x0000000008930000-0x0000000008931000-memory.dmp

Filesize
4KB

Download
memory/696-126-0x0000000002200000-0x000000000221F000-memory.dmp

Filesize
124KB

Download
memory/696-159-0x00000000081B0000-0x00000000081B1000-memory.dmp

Filesize
4KB

Download
memory/696-146-0x00000000027D0000-0x00000000027D1000-memory.dmp

Filesize
4KB

Download
memory/696-130-0x00000000022D0000-0x00000000022EE000-memory.dmp

Filesize
120KB

Download
memory/696-155-0x00000000027D2000-0x00000000027D3000-memory.dmp

Filesize
4KB

Download
memory/696-156-0x00000000027D3000-0x00000000027D4000-memory.dmp

Filesize
4KB

Download
memory/696-140-0x0000000000620000-0x0000000000650000-memory.dmp

Filesize
192KB

Download
memory/696-152-0x0000000007130000-0x0000000007131000-memory.dmp

Filesize
4KB

Download
memory/696-165-0x0000000008A30000-0x0000000008A31000-memory.dmp

Filesize
4KB

Download
memory/696-150-0x00000000027D4000-0x00000000027D6000-memory.dmp

Filesize
8KB

Download
memory/696-143-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/3024-137-0x00000000023A0000-0x00000000023A1000-memory.dmp

Filesize
4KB

Download
memory/3024-135-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/3024-144-0x0000000006EC0000-0x0000000006EC1000-memory.dmp

Filesize
4KB

Download
memory/3024-148-0x00000000023A4000-0x00000000023A6000-memory.dmp

Filesize
8KB

Download
memory/3024-169-0x0000000009140000-0x0000000009141000-memory.dmp

Filesize
4KB

Download
memory/3024-147-0x00000000070C0000-0x00000000070C1000-memory.dmp

Filesize
4KB

Download
memory/3024-151-0x00000000023A2000-0x00000000023A3000-memory.dmp

Filesize
4KB

Download
memory/3024-154-0x00000000023A3000-0x00000000023A4000-memory.dmp

Filesize
4KB

Download
memory/3024-134-0x00000000020A0000-0x00000000020D7000-memory.dmp

Filesize
220KB

Download
memory/3024-141-0x0000000005800000-0x0000000005801000-memory.dmp

Filesize
4KB

Download
memory/3024-132-0x0000000005710000-0x0000000005711000-memory.dmp

Filesize
4KB

Download
memory/3024-131-0x00000000050C0000-0x00000000050C1000-memory.dmp

Filesize
4KB

Download
memory/3024-129-0x00000000024F0000-0x0000000002512000-memory.dmp

Filesize
136KB

Download
memory/3024-127-0x0000000004A80000-0x0000000004A81000-memory.dmp

Filesize
4KB

Download
memory/3024-162-0x00000000080A0000-0x00000000080A1000-memory.dmp

Filesize
4KB

Download
memory/3024-163-0x0000000005030000-0x0000000005031000-memory.dmp

Filesize
4KB

Download
memory/3024-125-0x0000000002370000-0x0000000002393000-memory.dmp

Filesize
140KB

Download
memory/4016-114-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads