7337bec2f0b0c62a0a2c97f9abc95e1c9d8da463d9f1cb23fab778f0708dcebf

Analysis

max time kernel
141s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
23-03-2023 22:01

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General

Target

Contract_March_23_INV#105.pdf
Size

151KB
MD5

225e605bcc0e9e81b467df6dc8a6b357
SHA1

d0ec1a13f21df8895a71f94a21bf4bcef7a5598a
SHA256

7337bec2f0b0c62a0a2c97f9abc95e1c9d8da463d9f1cb23fab778f0708dcebf
SHA512

3670022aff6bfdbc9422aedbfc29f24926e93d7e1d78ba2729dc4be5aef72d0a4515c4c7a3aaeeed6212d21fda956a57c8044cfa70cc2b3f8e60e2e90b23e0e6
SSDEEP

3072:8i8fp/3iIcOjyjH62ihrENG/Pm9sT1iFfC1iqF7WAaPds6yng74rqDQyGBmEXb:Dg/J+jEhc+iwJtWAng6qDQjXXb

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-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4288	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe
4288	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4288 wrote to memory of 4860	4288	AcroRd32.exe	88
PID 4288 wrote to memory of 4860	4288	AcroRd32.exe	88
PID 4288 wrote to memory of 4860	4288	AcroRd32.exe	88
PID 4288 wrote to memory of 4572	4288	AcroRd32.exe	90
PID 4288 wrote to memory of 4572	4288	AcroRd32.exe	90
PID 4288 wrote to memory of 4572	4288	AcroRd32.exe	90
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 1824	4860	RdrCEF.exe	91
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92
PID 4860 wrote to memory of 4712	4860	RdrCEF.exe	92

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\Contract_March_23_INV#105.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:4288
- 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:4860
- - 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=5A174B71C67CBCBF98EA15A6722777C7 --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=5A174B71C67CBCBF98EA15A6722777C7 --renderer-client-id=2 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1824
- - 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=62A257BF31A1D875C13C3237439881BD --mojo-platform-channel-handle=1844 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4712
- - 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=689B632BD510F8FC5F690E55D06F8C29 --mojo-platform-channel-handle=2292 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:64
- - 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=5F0E0D55DDF688A0DAE9DEF4785A5136 --mojo-platform-channel-handle=2124 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:988
- - 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=A0A5DAC16FDD7DE33A2C0E7BAF9B5E19 --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=A0A5DAC16FDD7DE33A2C0E7BAF9B5E19 --renderer-client-id=6 --mojo-platform-channel-handle=1856 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4832
- - 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=7EB0FEDE72104E5F58666F4EF3139519 --mojo-platform-channel-handle=2648 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3856
- 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:4572

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
b4153d6dfe02b9ddaed3c1d460b857ef

SHA1
a1e4e435717dbc604f3b8b7f40f3cc7a72f58bf6

SHA256
f9af9930bca11b289074a80ea8fc2e4545e4687c30cb206e013420dde2836e4e

SHA512
75a6f853abbff39c4b6c1be776ab304cc375d33bb1cfb54b09fd50b4caa1cc7f83094104394991704b4dd384ee9aff2aa6d1b38d4d1ef01aa5d0d6995d83f2ff

Download Submit