3939a1f6bff54c810235a48d4e66b5dbc7e1361f4bcd6fe603ea9097349d7772

Analysis

max time kernel
143s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2024 09:07

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General

Target

76f3dc626e41f3b24ae57e5efac62abe.pdf
Size

34KB
MD5

76f3dc626e41f3b24ae57e5efac62abe
SHA1

aaa1e6ac5118e16ad6f9d48f7421e905b3acc3c4
SHA256

3939a1f6bff54c810235a48d4e66b5dbc7e1361f4bcd6fe603ea9097349d7772
SHA512

083c3cf9fe57e4d97efa32b05eb4ad148fffb6749e72faf61e19f0a195bee4bbdea40ffa091694d0e6285083c9b3810e558da38ac5111d97e9ea627e5bef93bb
SSDEEP

768:EDGd/siCPIve/6zlUoWRktzqD/OFXZMSc9+ja:ECiBL6zlvNqD/O9ZnG+ja

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-1-5-21-996941297-2279405024-2328152752-1000\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 2980	636	AcroRd32.exe	91
PID 636 wrote to memory of 2980	636	AcroRd32.exe	91
PID 636 wrote to memory of 2980	636	AcroRd32.exe	91
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 1624	2980	RdrCEF.exe	94
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	RdrCEF.exe	95
PID 2980 wrote to memory of 4624	2980	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\76f3dc626e41f3b24ae57e5efac62abe.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:2980
- - 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=7A0C418383180237DA76FD1018A3A503 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1624
- - 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=4180890FE30624373F24DC09485054BB --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=4180890FE30624373F24DC09485054BB --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4624
- - 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=15B0804C40F2654E3B6852CFAE6FEC5B --mojo-platform-channel-handle=2304 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1496
- - 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=C67EDB05D2825E681FD6B8E6E9A2CF6B --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=C67EDB05D2825E681FD6B8E6E9A2CF6B --renderer-client-id=5 --mojo-platform-channel-handle=1804 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4640
- - 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=8C5597D9EE84728E71113D60B084F73F --mojo-platform-channel-handle=2444 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3152
- - 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=2594CC9D523B189073CE5A0461313F8B --mojo-platform-channel-handle=2696 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1464

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
d50d2e2d45be30fab358c255af4d3d50

SHA1
23ebee516920ef74a847d7dfbc668574c760467f

SHA256
0b62cbf28c9a525ae1c0a2c7e208f483d156c4b5f91378b0898b7945c866b6c0

SHA512
9b537cb8cc5b7befa6942ae235f7d7889051730791344a33e8d9ff6a1a6d43543e1cb258967fe74d7a3fe914545026cc5859717f23d43e54bea6d5f4eefaf560

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/636-28-0x000000000A6B0000-0x000000000A6D1000-memory.dmp

Filesize
132KB

Download