cf0146b898563aa481a8b2b52ec03e179e9c67ca37c53be5ad788bbc3fa56a2f

General

Target

58810457-Cryptography-RSA-Encryption-Algorithm-in-a-Nut-Shell.pdf
Size

392KB
MD5

67725a5107d665ee95f5368a560a3174
SHA1

9b1c173636aba3d37a5a71a2807446c33fa5afb6
SHA256

cf0146b898563aa481a8b2b52ec03e179e9c67ca37c53be5ad788bbc3fa56a2f
SHA512

7170882013b32905e1cad27ba29be2e01858beb46150c9d54b14b87d9186e798e09e56ee7b308cc0fd760d344b119dd338279d96e1181a14c88d50c70d84bf15

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-1-5-21-369956170-74428499-1628131376-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

AcroRd32.exe

pid	process
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe
5060	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

5060 AcroRd32.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

AcroRd32.exe

pid process

5060 AcroRd32.exe
5060 AcroRd32.exe
5060 AcroRd32.exe
5060 AcroRd32.exe
5060 AcroRd32.exe
5060 AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 5060 wrote to memory of 3844	5060	AcroRd32.exe	RdrCEF.exe
PID 5060 wrote to memory of 3844	5060	AcroRd32.exe	RdrCEF.exe
PID 5060 wrote to memory of 3844	5060	AcroRd32.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 3420	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	RdrCEF.exe	RdrCEF.exe
PID 3844 wrote to memory of 4152	3844	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\58810457-Cryptography-RSA-Encryption-Algorithm-in-a-Nut-Shell.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:5060
- 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:3844
- - 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=8894E689A789D61F1C2B718D9C4A54B3 --mojo-platform-channel-handle=1628 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3420
- - 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=5212515A2B3105DA442EBF00E12B6D91 --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=5212515A2B3105DA442EBF00E12B6D91 --renderer-client-id=2 --mojo-platform-channel-handle=1636 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4152
- - 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=2EA45F7C3B65C499D1E90FB0F193B3F5 --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=2EA45F7C3B65C499D1E90FB0F193B3F5 --renderer-client-id=4 --mojo-platform-channel-handle=2216 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1532
- - 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=0A03F3E34A3E0E135BE0CED53F705B38 --mojo-platform-channel-handle=2356 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4172
- - 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=04BB9DD4CFF57D792342DE21262921B0 --mojo-platform-channel-handle=1844 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4300
- - 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=0723914C24F0B6EDE96EE1756E31E486 --mojo-platform-channel-handle=2632 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3804

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/1532-122-0x0000000077D02000-0x0000000077D03000-memory.dmp

Filesize
4KB

Download
memory/3420-114-0x0000000077D02000-0x0000000077D03000-memory.dmp

Filesize
4KB

Download
memory/3804-133-0x0000000077D02000-0x0000000077D03000-memory.dmp

Filesize
4KB

Download
memory/4152-116-0x0000000077D02000-0x0000000077D03000-memory.dmp

Filesize
4KB

Download
memory/4172-127-0x0000000077D02000-0x0000000077D03000-memory.dmp

Filesize
4KB

Download
memory/4300-130-0x0000000077D02000-0x0000000077D03000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads