b7168fe2aa336aaa955f5105ecc0a84a159f88571409f4e5d65a6e272d68b661

Analysis

max time kernel
158s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2024 03:50

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General

Target

3fd20ebda9794932bd7db0175fc2676f.pdf
Size

87KB
MD5

3fd20ebda9794932bd7db0175fc2676f
SHA1

fa7c2eee138ccbf4b18d19367d1dadccc2d1f1ea
SHA256

b7168fe2aa336aaa955f5105ecc0a84a159f88571409f4e5d65a6e272d68b661
SHA512

1854e3ff31e883b7d50fcda7683899a6119c1ae8634254d38362cc00034eb36399a1152d46f8eb800033cb2b723e13ed4410715ae92826a80406e7d96634a801
SSDEEP

1536:0EgZrzXhyoiAFmNAC3LxwbtSlJ8BO73q+FdFmxm9WFLjc+yxq/+WjgXiWRNW8pOX:m3BmNjwbtSlJ8Q73qGqpyxq/VjG3RM7D

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

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3328	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe
3328	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3328 wrote to memory of 932	3328	AcroRd32.exe	96
PID 3328 wrote to memory of 932	3328	AcroRd32.exe	96
PID 3328 wrote to memory of 932	3328	AcroRd32.exe	96
PID 3328 wrote to memory of 2220	3328	AcroRd32.exe	98
PID 3328 wrote to memory of 2220	3328	AcroRd32.exe	98
PID 3328 wrote to memory of 2220	3328	AcroRd32.exe	98
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 3284	932	RdrCEF.exe	99
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100
PID 932 wrote to memory of 5116	932	RdrCEF.exe	100

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\3fd20ebda9794932bd7db0175fc2676f.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:3328
- 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:932
- - 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=1D01504709E45A7F0AAC563BB938D53A --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3284
- - 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=4C9126B224472AB471A159423487A9A9 --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=4 --enable-main-frame-before-activation --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=4C9126B224472AB471A159423487A9A9 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5116
- - 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=C59AA408B1D1AAD7148DB3436029DB01 --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=4 --enable-main-frame-before-activation --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=C59AA408B1D1AAD7148DB3436029DB01 --renderer-client-id=4 --mojo-platform-channel-handle=2164 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4572
- - 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=4BCE9AF7AC6B36AA6429076C4309B1B9 --mojo-platform-channel-handle=2524 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:60
- - 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=74983690A087A0E47D016C124E28C01F --mojo-platform-channel-handle=1772 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3980
- - 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=6747455C60FC5EEF57798BAA8F7B0943 --mojo-platform-channel-handle=2612 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3768
- 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:2220

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4464

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
601e2d1e6660daa1e0b1eb645966fcd4

SHA1
b81963f12f2ea78523c2000a8526db8f6e814841

SHA256
0e013b411951bfc1223bf8e3bef4c92cddb2afccd9a628284c881605ce35b913

SHA512
acab338ee1c780e8e0ee4132252f227cbb7d45a07cf0ddfd1f50e3e1a3287c0a5608fdcd24307e60ed84dac4bc8e7a56611fc158b6aa383fad58ccf10f04e287

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit