plugx | 2d17385ee0b70a6b61192b70ed2edc6d67907cd883a8fdb565fad1f357fb7140

Analysis

max time kernel
588s
max time network
646s
platform
windows10-2004_x64
resource
win10v2004-20220310-en
submitted
16-03-2022 16:53

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General

Target

resources.bat
Size

293B
MD5

8bfb2637eb0b51909955e765bf8b14fe
SHA1

fe1b7da9e9c69739648352024675c65f211f9632
SHA256

b6cd6969d9ad5d0711bd350b800e7a3c26df31d37f4c9631670e259a8d0bd882
SHA512

9b4681f0508ca81545b877b20f33ccfadc6e093715b9fa730f521a36f2ab7ac1faf4ba961c76409fcbd7a5df90955e18fbe8f88138c3841afa7fcb654871bcd8

Score

10^/10

plugx persistence trojan

Malware Config

Signatures

PlugX
PlugX is a RAT (Remote Access Trojan) that has been around since 2008.
trojan plugx

PlugX Rat Payload 10 IoCs

resource	yara_rule
behavioral20/files/0x0004000000020681-138.dat	PlugX
behavioral20/files/0x0004000000020681-139.dat	PlugX
behavioral20/files/0x0004000000020681-159.dat	PlugX
behavioral20/files/0x0004000000020681-157.dat	PlugX
behavioral20/files/0x0004000000020681-161.dat	PlugX
behavioral20/files/0x0004000000020681-168.dat	PlugX
behavioral20/files/0x0004000000020681-176.dat	PlugX
behavioral20/files/0x0004000000020681-181.dat	PlugX
behavioral20/files/0x0004000000020681-185.dat	PlugX
behavioral20/files/0x0004000000020681-189.dat	PlugX

Executes dropped EXE 12 IoCs

pid	Process
2296	Bloom.exe
2624	Bloom.exe
4776	Bloom.exe
2752	Bloom.exe
4756	Bloom.exe
3016	Bloom.exe
4696	Bloom.exe
1792	Bloom.exe
4092	Bloom.exe
3168	Bloom.exe
4404	Bloom.exe
4600	Bloom.exe

Checks computer location settings 2 TTPs 3 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-1-5-21-2403053463-4052593947-3703345493-1000\Control Panel\International\Geo\Nation	cmd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Control Panel\International\Geo\Nation	Bloom.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Control Panel\International\Geo\Nation	Bloom.exe

Loads dropped DLL 37 IoCs

pid	Process
2296	Bloom.exe
2296	Bloom.exe
2296	Bloom.exe
2624	Bloom.exe
4776	Bloom.exe
2752	Bloom.exe
4756	Bloom.exe
2752	Bloom.exe
2752	Bloom.exe
4756	Bloom.exe
4756	Bloom.exe
4776	Bloom.exe
4776	Bloom.exe
3016	Bloom.exe
4776	Bloom.exe
3016	Bloom.exe
3016	Bloom.exe
3016	Bloom.exe
4696	Bloom.exe
4696	Bloom.exe
4696	Bloom.exe
4696	Bloom.exe
1792	Bloom.exe
1792	Bloom.exe
1792	Bloom.exe
4092	Bloom.exe
4092	Bloom.exe
4092	Bloom.exe
3168	Bloom.exe
3168	Bloom.exe
3168	Bloom.exe
4404	Bloom.exe
4404	Bloom.exe
4404	Bloom.exe
4600	Bloom.exe
4600	Bloom.exe
4600	Bloom.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bloom = "C:\\Users\\Admin\\AppData\\Roaming\\Bloom\\Bloom.exe --qyS7"	reg.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{ACEAEE28-A864-42DD-BCC2-790E3262CD32}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{EFC49FCF-7491-477E-8E02-1F7B262A9ACD}.catalogItem	svchost.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 3 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	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-2403053463-4052593947-3703345493-1000\{AC1CB510-FC4F-4D76-9851-8426EE927A37}	Bloom.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-2403053463-4052593947-3703345493-1000\{C1D01258-C010-4DC7-AEF5-B0112C310D29}	Bloom.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
2752	Bloom.exe
2752	Bloom.exe
4776	Bloom.exe
4776	Bloom.exe
4756	Bloom.exe
4756	Bloom.exe
2296	Bloom.exe
2296	Bloom.exe
3016	Bloom.exe
3016	Bloom.exe
4696	Bloom.exe
4696	Bloom.exe
1792	Bloom.exe
1792	Bloom.exe
4092	Bloom.exe
4092	Bloom.exe
3168	Bloom.exe
3168	Bloom.exe
4404	Bloom.exe
4404	Bloom.exe
4600	Bloom.exe
4600	Bloom.exe
2296	Bloom.exe
2296	Bloom.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2296	Bloom.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3168 wrote to memory of 212	3168	cmd.exe	87
PID 3168 wrote to memory of 212	3168	cmd.exe	87
PID 3168 wrote to memory of 2788	3168	cmd.exe	88
PID 3168 wrote to memory of 2788	3168	cmd.exe	88
PID 3168 wrote to memory of 1808	3168	cmd.exe	89
PID 3168 wrote to memory of 1808	3168	cmd.exe	89
PID 3168 wrote to memory of 2296	3168	cmd.exe	91
PID 3168 wrote to memory of 2296	3168	cmd.exe	91
PID 2296 wrote to memory of 2624	2296	Bloom.exe	95
PID 2296 wrote to memory of 2624	2296	Bloom.exe	95
PID 2296 wrote to memory of 4776	2296	Bloom.exe	96
PID 2296 wrote to memory of 4776	2296	Bloom.exe	96
PID 2296 wrote to memory of 2752	2296	Bloom.exe	98
PID 2296 wrote to memory of 2752	2296	Bloom.exe	98
PID 2296 wrote to memory of 4756	2296	Bloom.exe	97
PID 2296 wrote to memory of 4756	2296	Bloom.exe	97
PID 2296 wrote to memory of 3016	2296	Bloom.exe	99
PID 2296 wrote to memory of 3016	2296	Bloom.exe	99
PID 2296 wrote to memory of 4696	2296	Bloom.exe	101
PID 2296 wrote to memory of 4696	2296	Bloom.exe	101
PID 2296 wrote to memory of 1792	2296	Bloom.exe	102
PID 2296 wrote to memory of 1792	2296	Bloom.exe	102
PID 2296 wrote to memory of 4092	2296	Bloom.exe	103
PID 2296 wrote to memory of 4092	2296	Bloom.exe	103
PID 2296 wrote to memory of 3168	2296	Bloom.exe	104
PID 2296 wrote to memory of 3168	2296	Bloom.exe	104
PID 2296 wrote to memory of 4404	2296	Bloom.exe	105
PID 2296 wrote to memory of 4404	2296	Bloom.exe	105
PID 2296 wrote to memory of 4600	2296	Bloom.exe	106
PID 2296 wrote to memory of 4600	2296	Bloom.exe	106

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\resources.bat"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3168
- C:\Windows\system32\tar.exe
  tar -xvf "app.zip" -C "C:\Users\Admin\AppData\Roaming"
  2⤵
  PID:212
- C:\Windows\system32\reg.exe
  reg delete "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run" /v Bloom /f
  2⤵
  PID:2788
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run" /v Bloom /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe --qyS7" /f
  2⤵
  - Adds Run key to start application
  PID:1808
- C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe
  "C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe"
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2296
- - C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe
    C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Bloom\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Bloom\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Bloom\User Data" --annotation=plat=Win64 --annotation=prod=Bloom --annotation=ver=0.0.2 --initial-client-data=0x204,0x208,0x20c,0x1c8,0x210,0x7ffb69e99ec0,0x7ffb69e99ed0,0x7ffb69e99ee0
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:2624
- - C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe
    "C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe" --type=gpu-process --field-trial-handle=1692,7410571488684497181,6701078849341615436,131072 --no-sandbox --user-data-dir="C:\Users\Admin\AppData\Local\Bloom\User Data" --nwapp-path="C:\Users\Admin\AppData\Local\Temp\nw2296_1678435841" --start-stack-profiler --gpu-preferences=MAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAQAAAAAAAAAAAAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAA= --mojo-platform-channel-handle=1696 /prefetch:2
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:4776
- - C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe
    "C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=1692,7410571488684497181,6701078849341615436,131072 --lang=en-US --service-sandbox-type=none --no-sandbox --enable-audio-service-sandbox --user-data-dir="C:\Users\Admin\AppData\Local\Bloom\User Data" --nwapp-path="C:\Users\Admin\AppData\Local\Temp\nw2296_1678435841" --mojo-platform-channel-handle=2200 /prefetch:8
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:4756
- - C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe
    "C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1692,7410571488684497181,6701078849341615436,131072 --lang=en-US --service-sandbox-type=network --no-sandbox --enable-audio-service-sandbox --user-data-dir="C:\Users\Admin\AppData\Local\Bloom\User Data" --nwapp-path="C:\Users\Admin\AppData\Local\Temp\nw2296_1678435841" --mojo-platform-channel-handle=2168 /prefetch:8
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:2752
- - C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe
    "C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe" --type=renderer --no-sandbox --file-url-path-alias="/gen=C:\Users\Admin\AppData\Roaming\Bloom\gen" --js-flags=--expose-gc --no-zygote --register-pepper-plugins=widevinecdmadapter.dll;application/x-ppapi-widevine-cdm --field-trial-handle=1692,7410571488684497181,6701078849341615436,131072 --lang=en-US --user-data-dir="C:\Users\Admin\AppData\Local\Bloom\User Data" --nwapp-path="C:\Users\Admin\AppData\Local\Temp\nw2296_1678435841" --nwjs --extension-process --enable-auto-reload --ppapi-flash-path=pepflashplayer.dll --ppapi-flash-version=32.0.0.223 --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --mojo-platform-channel-handle=2776 /prefetch:1
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:3016
- - C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe
    "C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe" --type=gpu-process --field-trial-handle=1692,7410571488684497181,6701078849341615436,131072 --no-sandbox --user-data-dir="C:\Users\Admin\AppData\Local\Bloom\User Data" --nwapp-path="C:\Users\Admin\AppData\Local\Temp\nw2296_1678435841" --start-stack-profiler --gpu-preferences=MAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAQAAAAAAAAAAAAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAA= --use-gl=swiftshader-webgl --mojo-platform-channel-handle=2140 /prefetch:2
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:4696
- - C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe
    "C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1692,7410571488684497181,6701078849341615436,131072 --lang=en-US --service-sandbox-type=none --no-sandbox --enable-audio-service-sandbox --user-data-dir="C:\Users\Admin\AppData\Local\Bloom\User Data" --nwapp-path="C:\Users\Admin\AppData\Local\Temp\nw2296_1678435841" --mojo-platform-channel-handle=1816 /prefetch:8
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:1792
- - C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe
    "C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1692,7410571488684497181,6701078849341615436,131072 --lang=en-US --service-sandbox-type=none --no-sandbox --enable-audio-service-sandbox --user-data-dir="C:\Users\Admin\AppData\Local\Bloom\User Data" --nwapp-path="C:\Users\Admin\AppData\Local\Temp\nw2296_1678435841" --mojo-platform-channel-handle=3480 /prefetch:8
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:4092
- - C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe
    "C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1692,7410571488684497181,6701078849341615436,131072 --lang=en-US --service-sandbox-type=none --no-sandbox --enable-audio-service-sandbox --user-data-dir="C:\Users\Admin\AppData\Local\Bloom\User Data" --nwapp-path="C:\Users\Admin\AppData\Local\Temp\nw2296_1678435841" --mojo-platform-channel-handle=3316 /prefetch:8
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:3168
- - C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe
    "C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1692,7410571488684497181,6701078849341615436,131072 --lang=en-US --service-sandbox-type=none --no-sandbox --enable-audio-service-sandbox --user-data-dir="C:\Users\Admin\AppData\Local\Bloom\User Data" --nwapp-path="C:\Users\Admin\AppData\Local\Temp\nw2296_1678435841" --mojo-platform-channel-handle=2296 /prefetch:8
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:4404
- - C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe
    "C:\Users\Admin\AppData\Roaming\Bloom\Bloom.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=1692,7410571488684497181,6701078849341615436,131072 --lang=en-US --service-sandbox-type=utility --no-sandbox --enable-audio-service-sandbox --user-data-dir="C:\Users\Admin\AppData\Local\Bloom\User Data" --nwapp-path="C:\Users\Admin\AppData\Local\Temp\nw2296_1678435841" --mojo-platform-channel-handle=2592 /prefetch:8
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    PID:4600

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:2580

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3016-173-0x00006CED00040000-0x00006CED00041000-memory.dmp

Filesize
4KB

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