5dfebfbf1001b1deddfd3f0409038d1475c471a8cacf5344005f7b07705bf9a2

General

Target

Let’s Private Chat Now.pdf
Size

351KB
MD5

fc9987b08b3c5f389b38f2a2605606d9
SHA1

d4961b2759649dc6857ce2dd90354bccb642cc81
SHA256

5dfebfbf1001b1deddfd3f0409038d1475c471a8cacf5344005f7b07705bf9a2
SHA512

a5e689daf5bf2dbfa4b4d5923d8d38eac03cd9f6e70145018ff4b9e9d8ef2aa0cd9c31a68c8b3504e243d6aab2ab87ca6a4f91ad34e0b7a029c4d8fcc8dbac7c

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-1-5-21-2481030822-2828258191-1606198294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

AcroRd32.exe

pid	process
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

3576 AcroRd32.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

AcroRd32.exe

pid process

3576 AcroRd32.exe
3576 AcroRd32.exe
3576 AcroRd32.exe
3576 AcroRd32.exe
3576 AcroRd32.exe
3576 AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 3576 wrote to memory of 924	3576	AcroRd32.exe	RdrCEF.exe
PID 3576 wrote to memory of 924	3576	AcroRd32.exe	RdrCEF.exe
PID 3576 wrote to memory of 924	3576	AcroRd32.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 3748	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	RdrCEF.exe	RdrCEF.exe
PID 924 wrote to memory of 2072	924	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\Let’s Private Chat Now.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:3576

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:924

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=DACAA8CF3CD559E1AF6019A17B71CC86 --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=DACAA8CF3CD559E1AF6019A17B71CC86 --renderer-client-id=2 --mojo-platform-channel-handle=1628 --allow-no-sandbox-job /prefetch:1
3⤵
PID:3748

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=198B6F9CD4225402E68BE86B3E7094F7 --mojo-platform-channel-handle=1796 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:2072

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=8B4F9A9156D87D1130CE4B42D92CC3CE --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=8B4F9A9156D87D1130CE4B42D92CC3CE --renderer-client-id=4 --mojo-platform-channel-handle=2080 --allow-no-sandbox-job /prefetch:1
3⤵
PID:900

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=78E56C491D1DD9DACBF5D5DB96A6F567 --mojo-platform-channel-handle=2600 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:1368

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=C9466E20F93FD90BED337AD2265FA6E8 --mojo-platform-channel-handle=2688 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:2132

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=516EDEC08657BD0A9CD3E200C5E05127 --mojo-platform-channel-handle=2632 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:1968

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

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Downloads

memory/900-126-0x0000000077A62000-0x0000000077A63000-memory.dmp

Filesize
4KB

Download
memory/900-128-0x0000000000000000-mapping.dmp

Download
memory/900-127-0x0000000000F66000-0x0000000000F67000-memory.dmp

Filesize
4KB

Download
memory/924-115-0x0000000000000000-mapping.dmp

Download
memory/1368-134-0x0000000000000000-mapping.dmp

Download
memory/1368-132-0x0000000077A62000-0x0000000077A63000-memory.dmp

Filesize
4KB

Download
memory/1368-133-0x0000000000F60000-0x0000000000F61000-memory.dmp

Filesize
4KB

Download
memory/1968-142-0x0000000000000000-mapping.dmp

Download
memory/1968-141-0x0000000000F69000-0x0000000000F6A000-memory.dmp

Filesize
4KB

Download
memory/1968-140-0x0000000077A62000-0x0000000077A63000-memory.dmp

Filesize
4KB

Download
memory/2072-123-0x0000000000000000-mapping.dmp

Download
memory/2072-120-0x0000000077A62000-0x0000000077A63000-memory.dmp

Filesize
4KB

Download
memory/2072-121-0x0000000000F68000-0x0000000000F69000-memory.dmp

Filesize
4KB

Download
memory/2132-136-0x0000000077A62000-0x0000000077A63000-memory.dmp

Filesize
4KB

Download
memory/2132-137-0x0000000000F66000-0x0000000000F67000-memory.dmp

Filesize
4KB

Download
memory/2132-138-0x0000000000000000-mapping.dmp

Download
memory/3748-118-0x0000000000000000-mapping.dmp

Download
memory/3748-117-0x0000000000E1A000-0x0000000000E1B000-memory.dmp

Filesize
4KB

Download
memory/3748-119-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/3748-116-0x0000000077A62000-0x0000000077A63000-memory.dmp

Filesize
4KB

Download
memory/3748-124-0x0000000000E40000-0x0000000000E41000-memory.dmp

Filesize
4KB

Download
memory/3748-122-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads