d1788ef891898d41db3b83aa361662f4f69a126d96cfee9f847411d5f81cc4c0

Analysis

max time kernel
140s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
15-03-2023 19:20

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General

Target

FAX_20230315_1678894473_515.pdf
Size

41KB
MD5

87c141f0af1b61502807a49c26effd17
SHA1

1f64ade0f99749d47a00d8e89f768321ba67a2db
SHA256

28df6daf994eed6077219820999110d29d60eed9d7110a3074a992e8347e6bb3
SHA512

5711a8f07b0b79844f5d7af227462cd54b12f24c456156b690a2ce63640090b8c601f5e7c7a04091fa2c3b446628c8fde34dc2ae2d3a1c0915a9f035448d78e3
SSDEEP

768:l9xo7+cTRgAMk7qytiRrUvI6XmpikoZJfz7k/8hF4kIgb8Y5:c+JA9WH6vI6Xmu7kU48bV

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-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3720	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe
3720	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3720 wrote to memory of 336	3720	AcroRd32.exe	86
PID 3720 wrote to memory of 336	3720	AcroRd32.exe	86
PID 3720 wrote to memory of 336	3720	AcroRd32.exe	86
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 4492	336	RdrCEF.exe	87
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88
PID 336 wrote to memory of 3548	336	RdrCEF.exe	88

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\FAX_20230315_1678894473_515.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:3720
- 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:336
- - 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=C8D1C61CAC330A8AA1D1392D3F33C4DA --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4492
- - 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=68A047E4F517461E7D1EAC6768F6EA74 --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=68A047E4F517461E7D1EAC6768F6EA74 --renderer-client-id=2 --mojo-platform-channel-handle=1760 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3548
- - 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=89340F6924E1BCBC1DB06E501097AEC4 --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=89340F6924E1BCBC1DB06E501097AEC4 --renderer-client-id=4 --mojo-platform-channel-handle=2320 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3656
- - 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=2B90FECC8895C876FE698DF63617A575 --mojo-platform-channel-handle=2352 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2596
- - 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=06A9AA9E236062F5A9209957324373B7 --mojo-platform-channel-handle=2596 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2268
- - 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=DD71273AAE3DC98E6942067C5AB77835 --mojo-platform-channel-handle=2680 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1596

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1008

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
7253bb23fae272e66b436eeec9b9a217

SHA1
b5e25372a22e7c2c3f1cbc513140c9741d6251ab

SHA256
d5311633a64f6ff8dd5120cb23ad6769ce68e4acd641bf5973d0b036b5b4a1b3

SHA512
0a8f3e4500dab473f8d7e5f746ab1c3c8df8a7d11bbab83f9266ac157aaa72eeaa024dc4c4e76dadd04dccb06b2bacd3a0d15320f582c763fbaceeaf7e466715

Download Submit
memory/3720-261-0x000000000ADD0000-0x000000000B07B000-memory.dmp

Filesize
2.7MB

Download