f84bc055bbb2a70c3c67968ad7f111c84389ab9adb276d79804fb7eccd0fd15f

Analysis

max time kernel
153s
max time network
156s
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 03:58

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General

Target

2736b69f0b4b74277a62116b5aa3a14d.pdf
Size

60KB
MD5

2736b69f0b4b74277a62116b5aa3a14d
SHA1

907d7b126cd8dbae9c1167f72fb9020ac78d4582
SHA256

f84bc055bbb2a70c3c67968ad7f111c84389ab9adb276d79804fb7eccd0fd15f
SHA512

5ee6d4ace2675ad5b7e6bb5793ae08c4e5265c7cbf2eaa3cb8f93aa27b455696205ae56b70a92ee1c0e67d4ea1336bf40dd9df91f2dfb5a35a2c1254b02c0068
SSDEEP

1536:N1L6MNgAQ6Eb45ApytLv77+3SPj8v4e/YgftNUOnc+Vg7Nxv:HL6/A1Eb4OpytL7fPj/EY+DUOc+a7X

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-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4896	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4896 wrote to memory of 5036	4896	AcroRd32.exe	91
PID 4896 wrote to memory of 5036	4896	AcroRd32.exe	91
PID 4896 wrote to memory of 5036	4896	AcroRd32.exe	91
PID 4896 wrote to memory of 1552	4896	AcroRd32.exe	92
PID 4896 wrote to memory of 1552	4896	AcroRd32.exe	92
PID 4896 wrote to memory of 1552	4896	AcroRd32.exe	92
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 1888	5036	RdrCEF.exe	93
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	RdrCEF.exe	95
PID 5036 wrote to memory of 4792	5036	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\2736b69f0b4b74277a62116b5aa3a14d.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:4896
- 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:5036
- - 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=EE01395865C088DF6BE4C2CC295537A2 --mojo-platform-channel-handle=1760 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1888
- - 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=56D8A20E927AF0E90BBC328397A729D6 --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=56D8A20E927AF0E90BBC328397A729D6 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4792
- - 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=4FAD90A690834C7747588425EA891746 --mojo-platform-channel-handle=2324 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1616
- - 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=0E48CAC1869BC718BE306DACF867F55A --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=0E48CAC1869BC718BE306DACF867F55A --renderer-client-id=5 --mojo-platform-channel-handle=1988 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4644
- - 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=1CCF4C9D6E983608E2DAFD00826F5D2F --mojo-platform-channel-handle=2440 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2244
- - 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=64646CB3370653C07E7A5A8194A541EC --mojo-platform-channel-handle=2668 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4348
- 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⤵
  PID:1552

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
d8f70383c772ebfeb5d9969f905683b3

SHA1
102ebc224d198d42d3085eb5e8d302f54dfdd631

SHA256
57625eba7636dc21bf5cab6c12de65076a2d04a6edcb9143ff2a3ab7d8dfe505

SHA512
46340b68af54c7a423f0f1a3c0267d56c5bdabd34c603f8d6c7487ca4f4ddd2096d309867d6d097acde0bf88fde534f33d48de223acf465fcdf4d8b4d8c9c899

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

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

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

Filesize
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

Download Submit
memory/4896-159-0x000000000A540000-0x000000000A56A000-memory.dmp

Filesize
168KB

Download