b0e3b5b50b758f4ea6d1a4ada6ca8f19bce13d81bfac0423538940349c012214

Analysis

max time kernel
146s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
20-07-2023 12:10

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General

Target

Drill Schedule TY23 v4.pdf
Size

299KB
MD5

51013358ad578819606172b4de436e37
SHA1

b570c2a93fe051172a54f441118219f6bdc9bc5c
SHA256

b0e3b5b50b758f4ea6d1a4ada6ca8f19bce13d81bfac0423538940349c012214
SHA512

f8480e9623687752c1822eafab2425641c568987d0715769d8ae21975eeffd72a17d7e9ed916fff2624c3ff728e7c519f43fcc759e15f4e856bb576e2cba2559
SSDEEP

6144:hLFHDDA2HcsVFH+14q4PtHWX2tVtjD4v/jdfNejSDAPOVSS:HnHHJFH+14RQ2tzDmLtN68APOV/

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-1-5-21-1498570331-2313266200-788959944-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4376	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe
4376	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4376 wrote to memory of 3920	4376	AcroRd32.exe	90
PID 4376 wrote to memory of 3920	4376	AcroRd32.exe	90
PID 4376 wrote to memory of 3920	4376	AcroRd32.exe	90
PID 4376 wrote to memory of 4744	4376	AcroRd32.exe	92
PID 4376 wrote to memory of 4744	4376	AcroRd32.exe	92
PID 4376 wrote to memory of 4744	4376	AcroRd32.exe	92
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 2456	3920	RdrCEF.exe	93
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94
PID 3920 wrote to memory of 3648	3920	RdrCEF.exe	94

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\Drill Schedule TY23 v4.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:4376
- 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:3920
- - 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=CCA9C0E1287F02D8026560B272AF32DF --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2456
- - 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=25F38EF9C43DBCDA1DF770EAFD37918C --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=25F38EF9C43DBCDA1DF770EAFD37918C --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3648
- - 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=B57ACE0B24D1F5DECC17F99709721445 --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=B57ACE0B24D1F5DECC17F99709721445 --renderer-client-id=4 --mojo-platform-channel-handle=2184 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4464
- - 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=D10CA9F3C83C3460B72FC7B2C6480218 --mojo-platform-channel-handle=2572 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1296
- - 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=27C5306E73B00C72336B75BC711B691A --mojo-platform-channel-handle=1848 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2384
- - 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=8908CE2BD89AEB5E5015CE9EA402A6A2 --mojo-platform-channel-handle=1892 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:776
- 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:4744

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
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
e6d162563b085daaf410a569021b474a

SHA1
6499450f9cf0e5c4e2627b5a39e3158c48e945b7

SHA256
2529ec9fcb8b374860bd8ea105f2ec1b7e548502c7b42344f0d348c1c018e8ea

SHA512
366a0236b5b5c037d6099c99de26c98a57a1ba980e795d1d8adcc7af5ecc1b4100157f7d1226d383159f2b78ec767b7821468655dd83d9a8bbbf0e7c4b03878c

Download Submit
memory/4376-290-0x000000000B7C0000-0x000000000BA6B000-memory.dmp

Filesize
2.7MB

Download