b6a3ac5c3183484cef18358f1ac2d96964a7dd9a77e38ddfb16a90b1064d45f2

Analysis

max time kernel
141s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
26-04-2023 09:55

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General

Target

A.pdf
Size

24KB
MD5

f59f3e99dcd30642d2dc379317b168d6
SHA1

dcc320d8ef90aaa2cce054c8d0a34ab5fc1a65bc
SHA256

b6a3ac5c3183484cef18358f1ac2d96964a7dd9a77e38ddfb16a90b1064d45f2
SHA512

c6c6a2eef88ae3b15c07c876f891785aaad8787893460616778c97bb24c13d186c932edc567ae9e14080800a12b7b08baa8cd6bc023565be681a97076f44aedf
SSDEEP

384:B8PzfSnMFAPmLxaKvH2Sck75X054oFoChYj9bW/beDcX10MK3V+8loNw2l9:B8PCM+PmL32hk7R0hoV8mcXKv3VBoNwC

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-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3148	AcroRd32.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe
3148	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3148 wrote to memory of 224	3148	AcroRd32.exe	86
PID 3148 wrote to memory of 224	3148	AcroRd32.exe	86
PID 3148 wrote to memory of 224	3148	AcroRd32.exe	86
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 4576	224	RdrCEF.exe	87
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88
PID 224 wrote to memory of 1132	224	RdrCEF.exe	88

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\A.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:3148
- 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:224
- - 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=6D081444C5676880713BF4F715FA1199 --mojo-platform-channel-handle=1716 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4576
- - 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=CB7F04700A84D32C75311E98E3C438D5 --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=2 --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=CB7F04700A84D32C75311E98E3C438D5 --renderer-client-id=2 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1132
- - 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=359E7CA1BC3F501B324E8CA7C9EB14B0 --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=2 --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=359E7CA1BC3F501B324E8CA7C9EB14B0 --renderer-client-id=4 --mojo-platform-channel-handle=2164 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1316
- - 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=57D3681037796C932926AEF8A64C7EAF --mojo-platform-channel-handle=2412 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:832
- - 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=0809574B227B641F21E487C779499309 --mojo-platform-channel-handle=2548 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:616
- - 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=F74793DD073BC3C7A30B7CBDB71860D4 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3788

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4420

Network

MITRE ATT&CK Enterprise v6

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

Filesize
64KB

MD5
b06c687af7ed78ff21260669813f3753

SHA1
74db320c25277bfe1be8ebeb28305db33149f12d

SHA256
e60478d9172c3b15c76029fddd9da2dd215177f80a55485a16d2c85c829b3a29

SHA512
e7e8c7e751d59b73da83cf2d30b7fa97488c34f4693e2da312c46e6e9e5d0e1d6b778d75c7934a4010722d9b6097ec152c7b905db082561ee51553b6524e5b4d

Download Submit