03112f204c7ee6a63c4148f0f16eedf5d427d6790e19e2dbfc10f8762b28d0ef

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
26-01-2024 01:53

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General

Target

76146e804a4639b98e3f6c8df0a0b53b.pdf
Size

109KB
MD5

76146e804a4639b98e3f6c8df0a0b53b
SHA1

94b437f8b6fda923081275ee8d10715341e96630
SHA256

03112f204c7ee6a63c4148f0f16eedf5d427d6790e19e2dbfc10f8762b28d0ef
SHA512

cf563627b4b1f57de9cc005041d0c9d8e96a6d99950ce050dfbfd0f55bd8c64591dd65def6ee7105acea0334c81e16deb00fd97dcaacd31cc6b1533b4bd40109
SSDEEP

3072:siqWN8S/cV6G/GqTpXhVnXj74+mT2E8pL5u2oirC:so/o+gpLXjs+mT2VBO

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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1540	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe
1540	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 2548	1540	AcroRd32.exe	91
PID 1540 wrote to memory of 2548	1540	AcroRd32.exe	91
PID 1540 wrote to memory of 2548	1540	AcroRd32.exe	91
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 2824	2548	RdrCEF.exe	94
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	RdrCEF.exe	95
PID 2548 wrote to memory of 464	2548	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\76146e804a4639b98e3f6c8df0a0b53b.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:1540
- 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:2548
- - 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=11D153111B1BB33EBAFA1DF60294B9CD --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2824
- - 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=D515EC4579F42E98F54736E46B85007D --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=D515EC4579F42E98F54736E46B85007D --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:464
- - 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=98E9223881206BC97E9FDDC32BE667C1 --mojo-platform-channel-handle=2188 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2412
- - 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=FB6FD351A18E396E5833B0B7D107CCA2 --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=FB6FD351A18E396E5833B0B7D107CCA2 --renderer-client-id=5 --mojo-platform-channel-handle=2424 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5068
- - 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=32ACF14A43B8352C3BD0875B9501FF6D --mojo-platform-channel-handle=2460 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1020
- - 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=BF54499AEF41211512C5CACC73CBE06C --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3324

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2248

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
17b4813f6d73dd3ae709fd4cb96d38a4

SHA1
be1ac28ec74dc5988518e260896ce632deb78aa4

SHA256
d2a80d678977fcf210db1f701743912b35b99809d137759a55673c6d227055d0

SHA512
8c76db9409c04ab6233ec1600cdd7ed334ceaff4b2648e77a740ab1c303fa616ca9fc5ac376980e1c8d287e4b78dfc82262957085fbe9ea800f0be57e6705101

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