b42459059c581b930ba8d71685d8af6d5c8008bacca1c0dbba49949be1d4e87f

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 15:50

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General

Target
87462543a66f2cfc264e901a35995d25.pdf
Size 86KB
Sample240201-tacj7abbdl
SHA256 b42459059c581b930ba8d71685d8af6d5c8008bacca1c0dbba49949be1d4e87f
MD5 87462543a66f2cfc264e901a35995d25
SHA1 66f3d47d00805ed8dfc198cf9359c9d9377fb215
SHA512 05f9a8997d50c7be93bade6d5fc00123554c215ee0d04a7da0a26ef154718fd5f0ecf036e4c70f1128dd6c57ee2bb644109ed948d17db140e3cb52a0341d548d
SSDEEP 1536:ZUAs1lkn//lPoH5UJdi9EkMJQ57E/HZafSXndKWidn85QCcW6pOu2jGJ:etCwHOdi91P57EcfSXdA8fVu2g
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4676	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe
4676	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4676 wrote to memory of 2904	4676	AcroRd32.exe	88
PID 4676 wrote to memory of 2904	4676	AcroRd32.exe	88
PID 4676 wrote to memory of 2904	4676	AcroRd32.exe	88
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 3684	2904	RdrCEF.exe	89
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90
PID 2904 wrote to memory of 4716	2904	RdrCEF.exe	90

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\87462543a66f2cfc264e901a35995d25.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:4676
- 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:2904
- - 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=D65CDBED7160C41CD0C7C70044B8A4D3 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3684
- - 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=C5DA14141382840D0A23CE4AD1B9319F --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=C5DA14141382840D0A23CE4AD1B9319F --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4716
- - 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=675C9D8F8D18675ABF4C100A7EB680F1 --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:928
- - 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=4715080415BA5DFB294113AD810B8131 --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=4715080415BA5DFB294113AD810B8131 --renderer-client-id=5 --mojo-platform-channel-handle=1904 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2156
- - 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=57C1C5CC2DEFA6F9EF2381F06219B993 --mojo-platform-channel-handle=2564 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1884
- - 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=8F0B0BB25BF5F90956665BDD0E6B1E6F --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2368

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3440

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

ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 64KB
SHA256 58e2106ceaa67caaaaaf96551bae45f093f99305f2170ee9f8289c0b590e888e
MD5 8edd48fb5fc62c962868b1fe077c545d
SHA1 9ac6bb33054344a6d1cc6128bf82fbb052e4192a
SHA512 7e8a43d9073eafbeff336dd610c58f08e74c459d3e6a260b831bda78d17c72bf422d560a69e0b1fc381b36e5198748f58f23987cf136c93a6da31aac196ae1ff
SSDEEP 384:yeEdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:P+elZsLQCZsL3hUS4
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 36KB
SHA256 b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
MD5 b30d3becc8731792523d599d949e63f5
SHA1 19350257e42d7aee17fb3bf139a9d3adb330fad4
SHA512 523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
SSDEEP 24:TLiXlzkrFsgIFsxX3pALXmnHpkDGjmcxBSkomXk+2m9RFTsyg+wmf9Mzm+Zs3tGl:TqlmFTIF3XmHjBoGGR+jMz+LhT
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 56KB
SHA256 111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
MD5 752a1f26b18748311b691c7d8fc20633
SHA1 c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA512 a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5
SSDEEP 192:wedRBvVrThe4p4/KhTB4p4CitZtkZsLRGVDbw6H3ph+v3YQa9:weZdThkKhBvkZsLRGlzh+vS9
MD5 SHA1 SHA512 SSDEEP

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memory/4676-27-0x000000000BCE0000-0x000000000BD01000-memory.dmp

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