golddragon | 3903958eb28632aa58e455eb87482d1ccef38a6fe43512baad30902e8bfdd6d5

Analysis

max time kernel
123s
max time network
134s
platform
windows10_x64
resource
win10-en-20211014
submitted
03-11-2021 12:20

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General

Target

3903958eb28632aa58e455eb87482d1ccef38a6fe43512baad30902e8bfdd6d5.dll
Size

481KB
MD5

e647b3366dc836c1f63bdc5ba2aef3a9
SHA1

a7b0711b45081768817e85d6fc76e23093093f87
SHA256

3903958eb28632aa58e455eb87482d1ccef38a6fe43512baad30902e8bfdd6d5
SHA512

39166d31017b238b4cae861ab263e3dd11260c0203fc8dcfd41461f3b850126ba954bcf9fb7678ceb63dc2e2f252bd6e20f7f33aed1a81db8c0d89c56be5dfcb

Score

10^/10

golddragon backdoor persistence spyware stealer

Malware Config

Signatures

GoldDragon
GoldDragon is a second-stage backdoor attributed to Kimsuky.
backdoor golddragon

GoldDragon 2021 Stage2 infostealer 3 IoCs

Detect GoldDragon InfoStealer Stage 2.

stealer

resource	yara_rule
behavioral2/memory/1208-127-0x00000000008E0000-0x0000000000939000-memory.dmp	golddragon_stage2
behavioral2/memory/1208-128-0x00000000008ECC77-mapping.dmp	golddragon_stage2
behavioral2/memory/1208-129-0x00000000008E0000-0x0000000000939000-memory.dmp	golddragon_stage2

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

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-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\dropbox = "rundll32.exe \"C:\\Users\\Admin\\AppData\\Roaming\\OneDriver\\down\\OneDrivecache.dll\" Run"	rundll32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2268 set thread context of 1208	2268	rundll32.exe	85

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
2372	tasklist.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command-Line Interface

T1059

pid	Process
1100	ipconfig.exe

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
620	systeminfo.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1132	taskkill.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1208	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1132	taskkill.exe
Token: SeDebugPrivilege	2372	tasklist.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 2268	1516	rundll32.exe	68
PID 1516 wrote to memory of 2268	1516	rundll32.exe	68
PID 1516 wrote to memory of 2268	1516	rundll32.exe	68
PID 2268 wrote to memory of 2120	2268	rundll32.exe	69
PID 2268 wrote to memory of 2120	2268	rundll32.exe	69
PID 2268 wrote to memory of 2120	2268	rundll32.exe	69
PID 2120 wrote to memory of 1132	2120	cmd.exe	71
PID 2120 wrote to memory of 1132	2120	cmd.exe	71
PID 2120 wrote to memory of 1132	2120	cmd.exe	71
PID 2268 wrote to memory of 3092	2268	rundll32.exe	74
PID 2268 wrote to memory of 3092	2268	rundll32.exe	74
PID 2268 wrote to memory of 3092	2268	rundll32.exe	74
PID 3092 wrote to memory of 1100	3092	cmd.exe	76
PID 3092 wrote to memory of 1100	3092	cmd.exe	76
PID 3092 wrote to memory of 1100	3092	cmd.exe	76
PID 3092 wrote to memory of 1148	3092	cmd.exe	77
PID 3092 wrote to memory of 1148	3092	cmd.exe	77
PID 3092 wrote to memory of 1148	3092	cmd.exe	77
PID 2268 wrote to memory of 3996	2268	rundll32.exe	78
PID 2268 wrote to memory of 3996	2268	rundll32.exe	78
PID 2268 wrote to memory of 3996	2268	rundll32.exe	78
PID 3996 wrote to memory of 620	3996	cmd.exe	80
PID 3996 wrote to memory of 620	3996	cmd.exe	80
PID 3996 wrote to memory of 620	3996	cmd.exe	80
PID 2268 wrote to memory of 2624	2268	rundll32.exe	82
PID 2268 wrote to memory of 2624	2268	rundll32.exe	82
PID 2268 wrote to memory of 2624	2268	rundll32.exe	82
PID 2624 wrote to memory of 2372	2624	cmd.exe	84
PID 2624 wrote to memory of 2372	2624	cmd.exe	84
PID 2624 wrote to memory of 2372	2624	cmd.exe	84
PID 2268 wrote to memory of 1208	2268	rundll32.exe	85
PID 2268 wrote to memory of 1208	2268	rundll32.exe	85
PID 2268 wrote to memory of 1208	2268	rundll32.exe	85
PID 2268 wrote to memory of 1208	2268	rundll32.exe	85
PID 2268 wrote to memory of 1208	2268	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3903958eb28632aa58e455eb87482d1ccef38a6fe43512baad30902e8bfdd6d5.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3903958eb28632aa58e455eb87482d1ccef38a6fe43512baad30902e8bfdd6d5.dll,#1
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2268
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c taskkill /f /im daumcleaner.exe
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2120
  - - C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im daumcleaner.exe
      4⤵
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:1132
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c ipconfig/all >>"C:\Users\Admin\AppData\Roaming\OneDriver\out\PI_001.dat" & arp -a >>"C:\Users\Admin\AppData\Roaming\OneDriver\out\PI_001.dat"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3092
  - - C:\Windows\SysWOW64\ipconfig.exe
      ipconfig /all
      4⤵
      Gathers network information
      PID:1100
  - - C:\Windows\SysWOW64\ARP.EXE
      arp -a
      4⤵
      PID:1148
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c systeminfo >>"C:\Users\Admin\AppData\Roaming\OneDriver\out\PI_001.dat"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3996
  - - C:\Windows\SysWOW64\systeminfo.exe
      systeminfo
      4⤵
      Gathers system information
      PID:620
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c tasklist >>"C:\Users\Admin\AppData\Roaming\OneDriver\out\PI_001.dat"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2624
  - - C:\Windows\SysWOW64\tasklist.exe
      tasklist
      4⤵
      Enumerates processes with tasklist
      Suspicious use of AdjustPrivilegeToken
      PID:2372
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Windows\system32\svchost.exe"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    PID:1208

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Process Discovery

T1057

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1208-129-0x00000000008E0000-0x0000000000939000-memory.dmp

Filesize
356KB

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memory/1208-127-0x00000000008E0000-0x0000000000939000-memory.dmp

Filesize
356KB

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads