275693bb559ac00f1d84d0a58e3b5314d986d93118ed5597448bfa6af7b83c3c

Analysis

max time kernel
185s
max time network
192s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 06:49

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General

Target

2c3c3895bdf8523aff473b41ab90d0de.pdf
Size

80KB
MD5

2c3c3895bdf8523aff473b41ab90d0de
SHA1

92144b1ffc9fe159a16c4bf138bc334d8973446c
SHA256

275693bb559ac00f1d84d0a58e3b5314d986d93118ed5597448bfa6af7b83c3c
SHA512

85a6ce29bfb7b3e005f3cae6849faa63648f5a3ad835c60a38a86863a7569ee92f2bda96639c7baed2f40ae5b20479873037e0026b20ce268654172982ed86b0
SSDEEP

1536:7rCLR5Hu1KA9TCXJMAmSxwdnqPUCSMfM7xrcgQWpQOWUNWapOtQlDJOROl:vy/Hu8A9TQMAdOn6UdMfSrcgRQKStQl/

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-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4488	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe
4488	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4488 wrote to memory of 4948	4488	AcroRd32.exe	93
PID 4488 wrote to memory of 4948	4488	AcroRd32.exe	93
PID 4488 wrote to memory of 4948	4488	AcroRd32.exe	93
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 1084	4948	RdrCEF.exe	94
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95
PID 4948 wrote to memory of 5104	4948	RdrCEF.exe	95

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\2c3c3895bdf8523aff473b41ab90d0de.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:4488
- 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:4948
- - 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=3ED9D2DEF06BBBC5CF698F5DA8782A1D --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1084
- - 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=26DB0FDAF98ABA94F347F7A0B39B92D1 --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=26DB0FDAF98ABA94F347F7A0B39B92D1 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5104
- - 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=DF8327E3FDCD07383143AE13DA896129 --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=DF8327E3FDCD07383143AE13DA896129 --renderer-client-id=4 --mojo-platform-channel-handle=2176 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3936
- - 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=8977E32BDCA1A2EDE3F21C81C7BB8DB5 --mojo-platform-channel-handle=2556 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4544
- - 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=2445B41D6A30F9C3FEA7BA3A14A638EA --mojo-platform-channel-handle=1920 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4180
- - 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=43EAFFDCA313CE138BCE3ADC16EEE09E --mojo-platform-channel-handle=2608 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3084

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4556

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
a616977ced6e28e79c58e61dd99664bf

SHA1
b1315e6acefc6c8c658f0a90b62f3500219eee87

SHA256
53705ce783cac8829931d29b42f20482cae4db01af6c88072446bfa14a052a98

SHA512
2133ce8ef2804f2df2eed2239817d3ff18da378b05d1324540c77e02a34ff76166731ec0b315f47abdae0dc94483b19a0c1481de3175b083a91681a7ff50b80e

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