643ab92c98ae9244b028893da8c30d68ad8f095226e9697290c5e590b58320da

Analysis

max time kernel
142s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28-03-2024 20:56

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General

Target

643ab92c98ae9244b028893da8c30d68ad8f095226e9697290c5e590b58320da.pdf
Size

944KB
MD5

121e70d295cb05ff711e1a787266317e
SHA1

97fbf6249872eb6d32b03a40fa12beca65081688
SHA256

643ab92c98ae9244b028893da8c30d68ad8f095226e9697290c5e590b58320da
SHA512

ecf934c6e4f0c54eee1ec54de93dc8cff88d964340fe0dd3def0f39b1d86123e5ee4e3574fbccb03e05a2fe964f28456bcefba2e9f3a858213c8f92a6c23d806
SSDEEP

24576:Eh/zPuN2g0FC7hqw1ageOt3+2ACNUcFebvit:irPuAqwjyQCuweGt

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
636	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe
636	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 636 wrote to memory of 216	636	AcroRd32.exe	92
PID 636 wrote to memory of 216	636	AcroRd32.exe	92
PID 636 wrote to memory of 216	636	AcroRd32.exe	92
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 5116	216	RdrCEF.exe	93
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94
PID 216 wrote to memory of 2156	216	RdrCEF.exe	94

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\643ab92c98ae9244b028893da8c30d68ad8f095226e9697290c5e590b58320da.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:636
- 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:216
- - 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=31C036C547E6CB605F50A0117DADD838 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5116
- - 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=B7F415CBB34D40FF56B9BA27253AD6D9 --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=B7F415CBB34D40FF56B9BA27253AD6D9 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --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=F98F643E8173D063CA78DBF2FF93A948 --mojo-platform-channel-handle=2324 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3792
- - 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=7577AAD5F0530413270D9373B0ACAD47 --mojo-platform-channel-handle=2512 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1772
- - 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=AA309794E88FA6FAF9A1F723B0E0175D --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=AA309794E88FA6FAF9A1F723B0E0175D --renderer-client-id=6 --mojo-platform-channel-handle=1940 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1292
- - 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=13DDCD02CAF4A8FF405433FD3D0DF88E --mojo-platform-channel-handle=2380 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2228

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2692

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
443f7986e5f56790da81a79cd329bb26

SHA1
56c9b1fe7c1cc65fa07eceb9af5776abc6acb80b

SHA256
9b12af103e4bda674c700908656b4c25a34f81aa90a9d401010df0f1f48588b7

SHA512
5fd671230ac26ebbe27658e7535d45f20b6a43f78db6ab3543b2662adf6ea358aca33e22ecb60c791fa4f62f48c78bea7b189b12f32334da1f51e35f391f0efb

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
memory/636-130-0x000000000AAD0000-0x000000000AD7B000-memory.dmp

Filesize
2.7MB

Download