57a3991786eb27f3d791534a60e635a8640a4039c7d65dcdb474f4b52d06d3b5

Analysis

max time kernel
141s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2024 01:58

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General

Target

8b186eadb4aa1df32bdeed37f2e71b2a.pdf
Size

13KB
MD5

8b186eadb4aa1df32bdeed37f2e71b2a
SHA1

d9473b673ae9ffa2a5986c7a2b133b0732e2247a
SHA256

57a3991786eb27f3d791534a60e635a8640a4039c7d65dcdb474f4b52d06d3b5
SHA512

18e7f4688e12222cc5a80ce19b924e048b596b9d7bff87371ea6a424cbf8cce46c9cf87aa812e3d594eaebf65c5f82c0277a8c414642d9d4ee07f314484d258d
SSDEEP

384:6hzaNwAO9GiJlDmlAloSAhmbZ9/9bQi/60G7J8vKIs:ahZGirHAhmbZ9VbQC6dJiKH

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-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3944	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3944 wrote to memory of 4704	3944	AcroRd32.exe	89
PID 3944 wrote to memory of 4704	3944	AcroRd32.exe	89
PID 3944 wrote to memory of 4704	3944	AcroRd32.exe	89
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 5064	4704	RdrCEF.exe	90
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91
PID 4704 wrote to memory of 1748	4704	RdrCEF.exe	91

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\8b186eadb4aa1df32bdeed37f2e71b2a.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:3944
- 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:4704
- - 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=A4B53AD190B0D4CBF249F4A7F9325593 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5064
- - 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=88D9E371237E76AF4F20CB1CB3B2CFD0 --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=88D9E371237E76AF4F20CB1CB3B2CFD0 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1748
- - 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=E08D13D14BD8F2B4F9789B57A119D76F --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1052
- - 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=B011F16E050759E4B99542AD2C8F0C2D --mojo-platform-channel-handle=2424 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4752
- - 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=E65D9F3F3F0FBE651C6576CC6B650961 --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=E65D9F3F3F0FBE651C6576CC6B650961 --renderer-client-id=6 --mojo-platform-channel-handle=2496 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3256
- - 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=FBC0C8F6F748168EAAC37225F9FF3596 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3748

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2596

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
f1bf183d356ba40d1349f932dcf0f6aa

SHA1
f1987895c4c3326139aa9999efc827c63025da3d

SHA256
c642718ce11f5476c628f2bc3199a4e128cc714bdc7b3b7cd16a430a50625822

SHA512
35b375d4f522729e30a1d6a830623ac60af4110f130741dac0411ef3651c8b576af078e8e9cec261f64654bed52099d0e4e9d18f8bdb0a590024022bece53a0d

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