d221a29bb4a93d6f9047b39b6d9b783701a91d58d09e36df05385147b0bba03e

Analysis

max time kernel
166s
max time network
175s
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 02:00

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General

Target

8b1958605498c9f8955a5ac4ecb1eda7.pdf
Size

52KB
MD5

8b1958605498c9f8955a5ac4ecb1eda7
SHA1

dcd136eb184a10cce0b7f0cdac789ec96ed7ecce
SHA256

d221a29bb4a93d6f9047b39b6d9b783701a91d58d09e36df05385147b0bba03e
SHA512

1fc11d94f49e81062ff877de08669e43fc37cf54489b9af82dbfe12a6c5458bf2b7fc5ee64284b0e75046a5d89fa4c67ddb84b07a9a7ca6aabfb78ff316a7b53
SSDEEP

1536:/qS5qpdIrBJ4sp3W6HIzsgwrzVGkjtFipBHn:SS7BVWfzsg4zVGkQ

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-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3188 wrote to memory of 4664	3188	AcroRd32.exe	86
PID 3188 wrote to memory of 4664	3188	AcroRd32.exe	86
PID 3188 wrote to memory of 4664	3188	AcroRd32.exe	86
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 4104	4664	RdrCEF.exe	89
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90
PID 4664 wrote to memory of 3984	4664	RdrCEF.exe	90

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\8b1958605498c9f8955a5ac4ecb1eda7.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3188
- 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:4664
- - 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=7017BE9E265761854900AE749494B8A6 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4104
- - 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=05EF1DBF3023967E121081C50FD493EA --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=05EF1DBF3023967E121081C50FD493EA --renderer-client-id=2 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3984
- - 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=F544329FE0782AC2715783E40F5CAD47 --mojo-platform-channel-handle=2180 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2696
- - 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=2736BC4FABFC70672A0B89244F3BDBE1 --mojo-platform-channel-handle=2220 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3572
- - 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=46DEDB75130A7B11030EF2CD5DC87519 --mojo-platform-channel-handle=2236 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1884

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
4ea192e99442a7f6cae13aab683e380b

SHA1
4ba0e6508a1e093eba6378193878ade4b5ff8cf3

SHA256
aad300fabea909b4119c7f5cc09f8415b7324dcfe53bce9a1083cf9d015bf78e

SHA512
1681d17adf54e69f1a48acc8de5bb8cfeddacb45432bdcfdc7ec9092a3af7c43630bb53cf997820aa1b32553328a5f4e57f2e2d9e55312a6151cfb26929fe66e

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