fa5d3580ac130a93c302f61e21398b2e996b95874943acd49e4698b217f5e273

Analysis

max time kernel
187s
max time network
196s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04/12/2022, 10:51

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General

Target

fa5d3580ac130a93c302f61e21398b2e996b95874943acd49e4698b217f5e273.dll
Size

668KB
MD5

e0cbe6643b884f84f0f97abe05f0a5fb
SHA1

a916d4c18c9b222215457ba82c06d36c081cf325
SHA256

fa5d3580ac130a93c302f61e21398b2e996b95874943acd49e4698b217f5e273
SHA512

b6a6c56c4e387b61ae4ac290e8e20f4b2a8423d7d730170ba633adb6d3dfd7c66ebd146175e07e809e674dd1d2991602fa9e747b38aa159eb16113949db9c1a2
SSDEEP

12288:xYPMAZbdSX+4l0RgZdRJrBI+mjqa+mY6wIa20dREXQei9v5OM:xYPbxgx06ZXJrJabmFICdl9vE

Score

8^/10

persistence

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\drivers\etc\hosts	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	msedge.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\a11cbf0b-a4fc-40eb-9aa6-e0aab70c7a00.tmp	setup.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\20221208015722.pma	setup.exe

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

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "http://www.thundercheats.com.br"	rundll32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	msedge.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1608	msedge.exe
1608	msedge.exe
3476	msedge.exe
3476	msedge.exe
4188	identity_helper.exe
4188	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 5 IoCs

pid	Process
3476	msedge.exe
3476	msedge.exe
3476	msedge.exe
3476	msedge.exe
3476	msedge.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3476	msedge.exe
3476	msedge.exe
3476	msedge.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3584	rundll32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4056 wrote to memory of 3584	4056	rundll32.exe	79
PID 4056 wrote to memory of 3584	4056	rundll32.exe	79
PID 4056 wrote to memory of 3584	4056	rundll32.exe	79
PID 3584 wrote to memory of 3476	3584	rundll32.exe	80
PID 3584 wrote to memory of 3476	3584	rundll32.exe	80
PID 3476 wrote to memory of 5008	3476	msedge.exe	81
PID 3476 wrote to memory of 5008	3476	msedge.exe	81
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 4104	3476	msedge.exe	84
PID 3476 wrote to memory of 1608	3476	msedge.exe	85
PID 3476 wrote to memory of 1608	3476	msedge.exe	85
PID 3476 wrote to memory of 2224	3476	msedge.exe	87
PID 3476 wrote to memory of 2224	3476	msedge.exe	87
PID 3476 wrote to memory of 2224	3476	msedge.exe	87
PID 3476 wrote to memory of 2224	3476	msedge.exe	87
PID 3476 wrote to memory of 2224	3476	msedge.exe	87
PID 3476 wrote to memory of 2224	3476	msedge.exe	87
PID 3476 wrote to memory of 2224	3476	msedge.exe	87
PID 3476 wrote to memory of 2224	3476	msedge.exe	87
PID 3476 wrote to memory of 2224	3476	msedge.exe	87
PID 3476 wrote to memory of 2224	3476	msedge.exe	87
PID 3476 wrote to memory of 2224	3476	msedge.exe	87
PID 3476 wrote to memory of 2224	3476	msedge.exe	87
PID 3476 wrote to memory of 2224	3476	msedge.exe	87
PID 3476 wrote to memory of 2224	3476	msedge.exe	87
PID 3476 wrote to memory of 2224	3476	msedge.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fa5d3580ac130a93c302f61e21398b2e996b95874943acd49e4698b217f5e273.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4056
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\fa5d3580ac130a93c302f61e21398b2e996b95874943acd49e4698b217f5e273.dll,#1
  2⤵
  - Drops file in Drivers directory
  - Modifies Internet Explorer start page
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3584
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.thundercheats.com.br/
    3⤵
    - Adds Run key to start application
    - Enumerates system info in registry
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3476
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xf8,0xfc,0x100,0xd4,0x104,0x7ff9654146f8,0x7ff965414708,0x7ff965414718
      4⤵
      PID:5008
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2144,10106979343032723723,16447719338228238331,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2184 /prefetch:2
      4⤵
      PID:4104
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2144,10106979343032723723,16447719338228238331,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2236 /prefetch:3
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:1608
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2144,10106979343032723723,16447719338228238331,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2740 /prefetch:8
      4⤵
      PID:2224
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,10106979343032723723,16447719338228238331,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3928 /prefetch:1
      4⤵
      PID:2464
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,10106979343032723723,16447719338228238331,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3368 /prefetch:1
      4⤵
      PID:4360
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2144,10106979343032723723,16447719338228238331,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5104 /prefetch:8
      4⤵
      PID:4380
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2144,10106979343032723723,16447719338228238331,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5580 /prefetch:8
      4⤵
      PID:1612
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,10106979343032723723,16447719338228238331,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5712 /prefetch:1
      4⤵
      PID:3804
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,10106979343032723723,16447719338228238331,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5728 /prefetch:1
      4⤵
      PID:932
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,10106979343032723723,16447719338228238331,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6312 /prefetch:1
      4⤵
      PID:3176
  - - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2144,10106979343032723723,16447719338228238331,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4272 /prefetch:8
      4⤵
      PID:5052
  - - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --configure-user-settings --verbose-logging --system-level --msedge --force-configure-user-settings
      4⤵
      Drops file in Program Files directory
      PID:392
    - - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
        
        "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x220,0x224,0x228,0x1f8,0x22c,0x7ff6c8ab5460,0x7ff6c8ab5470,0x7ff6c8ab5480
        5⤵
        
        PID:4648
  - - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2144,10106979343032723723,16447719338228238331,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4272 /prefetch:8
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:4188

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1396

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

Replay Monitor

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Downloads

C:\Windows\system32\drivers\etc\hosts

Filesize
25B

MD5
dfa933fce31d438b7040cfa5529725b6

SHA1
aaa1df92487490c7355edf9c09bf874ef3a90dae

SHA256
d9dc3e21e525c0816eca51dd6104976dfa959f8a1063e60c5d6b6b02d1e22618

SHA512
ddcb02f6bd5624c6cac1ddda6a21e3ea85d6a8e04fb0b12e1e4d4b947d2f2ccb3326ffd3e7d7f76adc04c4cd21d0d6197011fdcf5093b70fbe09529765ab1e96

Download Submit
memory/3584-136-0x00000000020C0000-0x00000000022E0000-memory.dmp

Filesize
2.1MB

Download
memory/3584-133-0x00000000020C0000-0x00000000022E0000-memory.dmp

Filesize
2.1MB

Download