0e3e47697539f1773fb53114ab53229c0304d86ed35aec05e5f5bfdf3bd35f9a

Analysis

max time kernel
180s
max time network
222s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
04/06/2022, 19:33

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General

Target

acrord32.dll
Size

972KB
MD5

e0977e26e7b850e20fd94fefc79af65f
SHA1

4a3749c33d235715a84ec4964e1d69d758645a82
SHA256

eef56bfc68959c6eaa66ab6abcaaf8fb54aa5b5a7da0866d97a1effeae0952b8
SHA512

5cc59cf2fe32f325861bdc593ceb71fe7bf348c3a4726418cda1b6a61b2c2da8cf734525f67df7d497592810f38184d8040c3bd62605885f3c140fce254e27ec

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
18	3576	rundll32.exe
29	3576	rundll32.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000_Classes\Local Settings	rundll32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3632	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3632	AcroRd32.exe
3632	AcroRd32.exe
3632	AcroRd32.exe
3632	AcroRd32.exe
4860	AdobeARM.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3792 wrote to memory of 3576	3792	rundll32.exe	79
PID 3792 wrote to memory of 3576	3792	rundll32.exe	79
PID 3792 wrote to memory of 3576	3792	rundll32.exe	79
PID 3576 wrote to memory of 3632	3576	rundll32.exe	81
PID 3576 wrote to memory of 3632	3576	rundll32.exe	81
PID 3576 wrote to memory of 3632	3576	rundll32.exe	81
PID 3632 wrote to memory of 868	3632	AcroRd32.exe	83
PID 3632 wrote to memory of 868	3632	AcroRd32.exe	83
PID 3632 wrote to memory of 868	3632	AcroRd32.exe	83
PID 3632 wrote to memory of 4980	3632	AcroRd32.exe	89
PID 3632 wrote to memory of 4980	3632	AcroRd32.exe	89
PID 3632 wrote to memory of 4980	3632	AcroRd32.exe	89
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 3632 wrote to memory of 4860	3632	AcroRd32.exe	91
PID 3632 wrote to memory of 4860	3632	AcroRd32.exe	91
PID 3632 wrote to memory of 4860	3632	AcroRd32.exe	91
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 640	868	RdrCEF.exe	90
PID 868 wrote to memory of 32	868	RdrCEF.exe	93
PID 868 wrote to memory of 32	868	RdrCEF.exe	93
PID 868 wrote to memory of 32	868	RdrCEF.exe	93
PID 868 wrote to memory of 32	868	RdrCEF.exe	93
PID 868 wrote to memory of 32	868	RdrCEF.exe	93
PID 868 wrote to memory of 32	868	RdrCEF.exe	93
PID 868 wrote to memory of 32	868	RdrCEF.exe	93
PID 868 wrote to memory of 32	868	RdrCEF.exe	93

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\acrord32.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3792
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\acrord32.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3576
- - 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\Report of the Secretary-General on Peacebuilding and Sustaining Peace (advance version).pdf"
    3⤵
    - Checks processor information in registry
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3632
  - - 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
      4⤵
      Suspicious use of WriteProcessMemory
      PID:868
    - - 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=5EF24BBD45C9BC781208E7AEE42316AE --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
        5⤵
        
        PID:640
    - - 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=C12BEAA34D823FBCD0DEA8B014E44DC1 --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=1 --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=C12BEAA34D823FBCD0DEA8B014E44DC1 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
        5⤵
        
        PID:32
    - - 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=45A28C9D451D728B7DC56F14FAAB0009 --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=1 --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=45A28C9D451D728B7DC56F14FAAB0009 --renderer-client-id=4 --mojo-platform-channel-handle=2168 --allow-no-sandbox-job /prefetch:1
        5⤵
        
        PID:4552
    - - 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=E0D4721ED6E81D2B5AB337F9CDEDE24F --mojo-platform-channel-handle=2568 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
        5⤵
        
        PID:1076
    - - 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=C3C771763109EDDA53A48B29F4F072F7 --mojo-platform-channel-handle=1940 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
        5⤵
        
        PID:1656
    - - 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=71E895D0B9510709A6B98C6E5AAD15FB --mojo-platform-channel-handle=2000 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
        5⤵
        
        PID:2024
  - - 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
      4⤵
      PID:4980
  - - C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe
      "C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe" /PRODUCT:Reader /VERSION:19.0 /MODE:3
      4⤵
      Suspicious use of SetWindowsHookEx
      PID:4860
    - - C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Reader_sl.exe
        
        "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Reader_sl.exe"
        5⤵
        
        PID:4712

Network

MITRE ATT&CK Enterprise v6

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\Report of the Secretary-General on Peacebuilding and Sustaining Peace (advance version).pdf

Filesize
936KB

MD5
bc5f2edf0f23957e0fbbcd845c744eb2

SHA1
b0c167333780626ca8bd6b3b2a9fc54f20a59f34

SHA256
54b491541376bda85ffb02b9bb40b9b5adba644f08b630fc1b47392625e1e60a

SHA512
84f8c65a02dfd9db2286df405d711595e62ba114c8f911b30561b90818d579879542c4af09950ca8b8c2a9f82186e1cecc25933c17fef7c41e0fbf158d5ee102

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads