da6bb9fd366a4357acffb0fc7cfcaa37e51d7441e1c2c341616e99966477d87f

General

Target

THYNK T&C.pdf
Size

66KB
MD5

7f433d8b1c34f29af22617ba2f9ee1a0
SHA1

9b9f8ad721a54f1eee9f2ae9f242b863fb3505ea
SHA256

88bb72510f08dcb28208e42c5fd32996c809882ebfb81b26152284a5150520bb
SHA512

d7e88fd506c364ec89aba8f38389adf7339db96444b487afa4e3e110137ca29c0c9298a2fba7696811472f0185b6c7c240324c3652a861442b4326eeb4fd3071
SSDEEP

1536:TIxlvSkKkI4epM6+nQ7EAIOQIUHBu/3GO:8xVnFbeM6+QT9nUHg/3Z

Score

1^/10

Malware Config

Signatures

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

Processes:

AcroRd32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

AcroRd32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

AcroRd32.exe

pid	process
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

2640 AcroRd32.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

AcroRd32.exe

pid process

2640 AcroRd32.exe
2640 AcroRd32.exe
2640 AcroRd32.exe
2640 AcroRd32.exe
2640 AcroRd32.exe
2640 AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 2640 wrote to memory of 2452	2640	AcroRd32.exe	RdrCEF.exe
PID 2640 wrote to memory of 2452	2640	AcroRd32.exe	RdrCEF.exe
PID 2640 wrote to memory of 2452	2640	AcroRd32.exe	RdrCEF.exe
PID 2640 wrote to memory of 2560	2640	AcroRd32.exe	RdrCEF.exe
PID 2640 wrote to memory of 2560	2640	AcroRd32.exe	RdrCEF.exe
PID 2640 wrote to memory of 2560	2640	AcroRd32.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 3184	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe
PID 2452 wrote to memory of 2260	2452	RdrCEF.exe	RdrCEF.exe

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\THYNK T&C.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2640
- C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2452
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=E38C55A6AF57A3438B871E133DC9028F --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3184
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=37950A24FEA9B8B6F428C75C2FE4E031 --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=1 --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=37950A24FEA9B8B6F428C75C2FE4E031 --renderer-client-id=2 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2260
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=7DEC98C39F0F5081DAC2F9EAFF17DF2A --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=1 --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=7DEC98C39F0F5081DAC2F9EAFF17DF2A --renderer-client-id=4 --mojo-platform-channel-handle=2172 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1036
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=AEE8EFFDD4570D2B16D7FF90F1574E6B --mojo-platform-channel-handle=2568 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1424
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=9701187257C7C881FE407F2394A14AF8 --mojo-platform-channel-handle=1960 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:744
- - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=54B0F1FA2693A37CEC79ACDC775D74A4 --mojo-platform-channel-handle=2580 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:404
- C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
  2⤵
  PID:2560

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2176

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/404-154-0x0000000000000000-mapping.dmp

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memory/744-151-0x0000000000000000-mapping.dmp

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memory/1036-143-0x0000000000000000-mapping.dmp

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memory/1424-148-0x0000000000000000-mapping.dmp

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memory/2260-138-0x0000000000000000-mapping.dmp

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memory/2452-132-0x0000000000000000-mapping.dmp

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memory/2560-133-0x0000000000000000-mapping.dmp

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memory/3184-135-0x0000000000000000-mapping.dmp

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads