f71a7d8010637243c6c510f8285c444bef9624eeeb2128818ebb0c448ea4431a

Analysis

max time kernel
141s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
24-01-2024 13:12

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General

Target

72559b0d3199b739d3b914d8c0a173e7.pdf
Size

116KB
MD5

72559b0d3199b739d3b914d8c0a173e7
SHA1

883df2e892ef8eaccbedb2d82cdff756f405f496
SHA256

f71a7d8010637243c6c510f8285c444bef9624eeeb2128818ebb0c448ea4431a
SHA512

fa13a499bf1adc89aba3dd58b41bba4150bb28d412532429c46c4200bcaedb3c180ea82cf0f1fe6464462c984bc42f082da5b70a4f7ccc53c5f42de2fd198311
SSDEEP

3072:G81Jmd6i0s9PWMRP4o1HvRyoZw0cGm9NEUWplBWQRZxj36lYpQqnSY:Fo39eqBpcGmEUWplzfxj36lY9

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-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4436	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe
4436	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4436 wrote to memory of 2320	4436	AcroRd32.exe	94
PID 4436 wrote to memory of 2320	4436	AcroRd32.exe	94
PID 4436 wrote to memory of 2320	4436	AcroRd32.exe	94
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1128	2320	RdrCEF.exe	96
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	RdrCEF.exe	97
PID 2320 wrote to memory of 1256	2320	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\72559b0d3199b739d3b914d8c0a173e7.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:4436
- 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:2320
- - 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=9C588A769E2C4BCBF4238170E4148CE5 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1128
- - 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=80FDBD2AB8CF210E2FCF54B732FED406 --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=80FDBD2AB8CF210E2FCF54B732FED406 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1256
- - 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=2AC131BDDF68DC5CD8F312EB52E689F8 --mojo-platform-channel-handle=2332 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:544
- - 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=F9A182E196E10A4B126AE2FA64DFE13F --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=F9A182E196E10A4B126AE2FA64DFE13F --renderer-client-id=5 --mojo-platform-channel-handle=1836 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4260
- - 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=4976639DA9B061B4381A504B8AF8FC05 --mojo-platform-channel-handle=2660 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:396
- - 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=A971026E72847A13551E9BB51349F36B --mojo-platform-channel-handle=2832 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4476

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:836

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
1d9892658432908206cabde6ee273d35

SHA1
c8ef3961949a23d8e9ddb45e6366143bad1bf014

SHA256
8b13c12618c9710193d95ac7c5c15f4ed652b06d394e5faa0240de26e288bcff

SHA512
88c80ad01e39d934ebdef71e5ecdc97ce92dcf86172c2e591aac0684605695f089ddba9e2d8967bca61978ab6f40e54fcf116ffeb018b058f4fc7f654eb77b5d

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