3671d7f8b00c82131ab7e9d817821ffd0936df57c7d769664ce8e6684721ca4c

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/12/2023, 18:15

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General

Target

Retirement Plans for Small Business.pdf
Size

1.3MB
MD5

946ba0295b152a44fc178ce09bbab88d
SHA1

4da14e723738992174ffce54fa25d4d0b4714ba3
SHA256

3671d7f8b00c82131ab7e9d817821ffd0936df57c7d769664ce8e6684721ca4c
SHA512

1489db33b22495cf1426e718cbceae9c3f0dfce2481baec3954e1d99af2054253aa41dd2eb31b0c7ad81e1931a40915d3a68a8455fb44cc36c94367630477fe9
SSDEEP

24576:ww4b/X8nrtEqgjAVfS+/a9Bsqp6H3H0xMj+cJxV/B/Dtdg71JWby3u0:sXQEqgj6Pab6H30xMjxd/B/Dta1Juy/

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-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4696	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe
4696	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4696 wrote to memory of 2260	4696	AcroRd32.exe	93
PID 4696 wrote to memory of 2260	4696	AcroRd32.exe	93
PID 4696 wrote to memory of 2260	4696	AcroRd32.exe	93
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 3540	2260	RdrCEF.exe	96
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97
PID 2260 wrote to memory of 4048	2260	RdrCEF.exe	97

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\Retirement Plans for Small Business.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:4696
- 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: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=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=FFD7547492555367F186C4E9F133E457 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3540
- - 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=705FF59E4D4E14F3B122E050732E4E18 --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=705FF59E4D4E14F3B122E050732E4E18 --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4048
- - 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=C4B291ED4FE03F95DBC19AFE46049DBE --mojo-platform-channel-handle=2324 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2960
- - 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=1AB6B680AB2CEB53E15C1335E19E1D07 --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=1AB6B680AB2CEB53E15C1335E19E1D07 --renderer-client-id=5 --mojo-platform-channel-handle=1888 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4028
- - 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=44F443C99672370507C1F6C46A65457C --mojo-platform-channel-handle=2716 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3920
- - 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=FDBC017A2939943C77A50312FA0A9334 --mojo-platform-channel-handle=1728 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1916

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2408

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

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Downloads

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

Filesize
64KB

MD5
a05033e5e08b3f6f7d74f30bd5e665d4

SHA1
f847e13f969feab48191f790e3eaac3649a8521f

SHA256
e7ce0b1354ad4bc2d4f9d78eeb0d7a2cdedcb600c6aea9f4ed76509c53d76d6b

SHA512
5ba904accea25cdc759d1e1f21e3a6f8170beccfc760c4e45d47809a8317673253bba73ccff29052f2b63042215a5c81df54d9fe2993dd62b5eeec3a68a795f4

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