b21f9807e6a135f061c05eccb3c03d2e17bac0e23feb3318d7246a20771a9b8d

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25/02/2024, 16:44

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General

Target

a4479018f67da26946f59565008d01c7.pdf
Size

35KB
MD5

a4479018f67da26946f59565008d01c7
SHA1

0980c2befbd554d6203ef55d3424f2099f4cdb51
SHA256

b21f9807e6a135f061c05eccb3c03d2e17bac0e23feb3318d7246a20771a9b8d
SHA512

f1a4139e6c978ee82b5ef644144ad034baf64e56ea8ea045aa68d1df4467f8c873835ee96a2fed63a0c8ebc9731b39f9caefeb21f867496e0c3fae7752914aa2
SSDEEP

768:S7LogXKc31vbWtCAW1wf9gugp9gCSxtzWJLpKsJkRG4FSj:QV3st/gugp9BSxtzWJpCDF0

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-1-5-21-1712835645-2080934712-2142796781-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2528	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe
2528	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 3476	2528	AcroRd32.exe	93
PID 2528 wrote to memory of 3476	2528	AcroRd32.exe	93
PID 2528 wrote to memory of 3476	2528	AcroRd32.exe	93
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 5048	3476	RdrCEF.exe	94
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	RdrCEF.exe	95
PID 3476 wrote to memory of 4740	3476	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\a4479018f67da26946f59565008d01c7.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:2528
- 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:3476
- - 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=119769060DCA417E10C500D13AD1EF49 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5048
- - 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=053A23DAF78F6EDBD75F571D3121F4D9 --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=053A23DAF78F6EDBD75F571D3121F4D9 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4740
- - 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=BC5E630C0C32C9703B6F996A05E60D04 --mojo-platform-channel-handle=2156 --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=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=1D5FB5F1C6D742B1C3883504A9A24A9F --mojo-platform-channel-handle=1960 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2524
- - 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=631D9430D3E80506EFB01A5E6E49EE64 --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=631D9430D3E80506EFB01A5E6E49EE64 --renderer-client-id=6 --mojo-platform-channel-handle=2320 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4532
- - 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=30E8F7EC197F1BB8AB50327419367E7F --mojo-platform-channel-handle=2332 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3992

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1912

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

Loading Replay Monitor...

Downloads

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

Filesize
64KB

MD5
e8c6f3ff92291ec8dcf15fc47c1c2d3a

SHA1
8d243370b863c3cea60b4a0c2188526e8603e5c6

SHA256
a75b8b3b5f0b4a094bf5571c2646328ffd4d4f04aba24b1dbd34b0b54dcb3129

SHA512
cae91269a4d657fd2d2e5d000d9bc97bf6386bfbb9cdd6396d68010ee0bc2ea555e41b4e54749fb7343ddf2034e2e976a52e2cbec69d48b7a0592721146804ab

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/2528-26-0x000000000A670000-0x000000000A6C0000-memory.dmp

Filesize
320KB

Download
memory/2528-28-0x000000000A670000-0x000000000A691000-memory.dmp

Filesize
132KB

Download