golddragon | 4a1c43258fe0e3b75afc4e020b904910c94d9ba08fc1e3f3a99d188b56675211

Analysis

max time kernel
110s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
12-04-2023 01:25

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General

Target

15ec5c7125e6c74f740d6fc3376c130d.exe
Size

330KB
MD5

15ec5c7125e6c74f740d6fc3376c130d
SHA1

fb09b89803da071b7b7eb23244771c54d979a873
SHA256

4a1c43258fe0e3b75afc4e020b904910c94d9ba08fc1e3f3a99d188b56675211
SHA512

b9ca295439ec152084e741058b059622c05341a485229e4158f9feec6ca4945ef9c1fb95c132f70c14baebd91240c3dedf7ccff06e86c0584650b564fbe0292d
SSDEEP

6144:F9uMUkomZtUSDmrGhEmX7JUWrgbmyRCtfGztnjE8TOaW3eHa/ro:F9uW9Tn6ahEmX7JUWrgbmFl8nNTZW3eD

Score

10^/10

golddragon backdoor

Malware Config

Signatures

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

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:

15ec5c7125e6c74f740d6fc3376c130d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	15ec5c7125e6c74f740d6fc3376c130d.exe

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

4112 rundll32.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 4112 set thread context of 3356 4112 rundll32.exe iexplore.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
4112	rundll32.exe

description	pid	process	target process
PID 4112 set thread context of 3356	4112	rundll32.exe	iexplore.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

15ec5c7125e6c74f740d6fc3376c130d.exerundll32.exe

description	pid	process	target process
PID 4100 wrote to memory of 4112	4100	15ec5c7125e6c74f740d6fc3376c130d.exe	rundll32.exe
PID 4100 wrote to memory of 4112	4100	15ec5c7125e6c74f740d6fc3376c130d.exe	rundll32.exe
PID 4100 wrote to memory of 4112	4100	15ec5c7125e6c74f740d6fc3376c130d.exe	rundll32.exe
PID 4112 wrote to memory of 3356	4112	rundll32.exe	iexplore.exe
PID 4112 wrote to memory of 3356	4112	rundll32.exe	iexplore.exe
PID 4112 wrote to memory of 3356	4112	rundll32.exe	iexplore.exe
PID 4112 wrote to memory of 3356	4112	rundll32.exe	iexplore.exe
PID 4112 wrote to memory of 3356	4112	rundll32.exe	iexplore.exe

C:\Users\Admin\AppData\Local\Temp\15ec5c7125e6c74f740d6fc3376c130d.exe
"C:\Users\Admin\AppData\Local\Temp\15ec5c7125e6c74f740d6fc3376c130d.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4100

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" "C:\Users\Admin\AppData\Roaming\OneDriver\RunOneDriver.dll" Run
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4112

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
PID:3356

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\OneDriver\RunOneDriver.dll
Filesize
223KB

MD5
2c530adb841114366ce6177ce964a5e6

SHA1
5b69e3e5f4f49cf8b635a57a8c92e17a4f130d50

SHA256
873b8fb97b4b0c6d7992f6af15653295788526def41f337c651dc64e8e4aeebd

SHA512
002ba1e7b6a1a250678bfe63ae8de106606bc540ab10d69abdb0b4f87e72c79f91cc7890f6e649226cef9d2fec3f5c5176c254e726ce6eaf3dc9d73b12408c65

Download Submit
C:\Users\Admin\AppData\Roaming\OneDriver\RunOneDriver.dll
Filesize
223KB

MD5
2c530adb841114366ce6177ce964a5e6

SHA1
5b69e3e5f4f49cf8b635a57a8c92e17a4f130d50

SHA256
873b8fb97b4b0c6d7992f6af15653295788526def41f337c651dc64e8e4aeebd

SHA512
002ba1e7b6a1a250678bfe63ae8de106606bc540ab10d69abdb0b4f87e72c79f91cc7890f6e649226cef9d2fec3f5c5176c254e726ce6eaf3dc9d73b12408c65

Download Submit
memory/3356-136-0x0000000001020000-0x0000000001044000-memory.dmp

Filesize
144KB

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