bc08aa26b7d49d894947f13419fb5115c669377f4517f12d21508c277589d283

Analysis

max time kernel
142s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
11/04/2023, 14:21

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General

Target

ComplaintApril_617320308.pdf
Size

90KB
MD5

7c79e3565a8b0d4f34a1a9c1ab6e9d0f
SHA1

8c9bd9292066177dca3ddf62be641b8ea19271d0
SHA256

bc08aa26b7d49d894947f13419fb5115c669377f4517f12d21508c277589d283
SHA512

087858f17f38bb4ca46ce413f0c8f41b529b76320e6349045a2aa7c9ae998fcb7892839c4f6d52c9e0c9884fa19340ce58aaf7a25afd198e587ae4eef367c1d5
SSDEEP

1536:oxwDn+jPcYZOpaLGXvJkqgHXe/T/apZjBECGP89pjSvRDAgdwMTMX:zNbBknuTudBQ8/jcRDBdwMAX

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-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2404	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe
2404	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 4716	2404	AcroRd32.exe	85
PID 2404 wrote to memory of 4716	2404	AcroRd32.exe	85
PID 2404 wrote to memory of 4716	2404	AcroRd32.exe	85
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 4776	4716	RdrCEF.exe	86
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87
PID 4716 wrote to memory of 2100	4716	RdrCEF.exe	87

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\ComplaintApril_617320308.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:2404
- 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:4716
- - 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=E9C8198E2A50D164F2AA8CD76FF3275B --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4776
- - 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=340791140EF403B4C59947D0361CDBD6 --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=2 --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=340791140EF403B4C59947D0361CDBD6 --renderer-client-id=2 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2100
- - 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=D4743267431433D016F5F97BCBB08D70 --mojo-platform-channel-handle=2160 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3420
- - 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=A3BC729669792C9507DC24D577102EFA --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=2 --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=A3BC729669792C9507DC24D577102EFA --renderer-client-id=5 --mojo-platform-channel-handle=1960 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4684
- - 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=0CC4FF9F1DAA60C833FD4E395FBB1B3B --mojo-platform-channel-handle=2568 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:552
- - 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=ED3FC31AF5E8992070A95F3CEE5A2908 --mojo-platform-channel-handle=2732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3728

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3404

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
64KB

MD5
42104fcdd3628d7a3b5e404a128d0675

SHA1
2da9ba5e38d7e78638d1e0a58a97d1edb75214ce

SHA256
5b3a3adc4a1769db59afcccda9012c78d15b2af62e8b9b9f2499483c74bdd05c

SHA512
7a99be94e31d3e61ae9ae6d17f5e5fa7f6ec61cd633a3455f394302ec366960cac8823a090cbf96b7b84d15d2f5ea53d21cdacc24df5df637215d43175f0a8cf

Download Submit