1c2ec0b069d82bc0db7ae781fcde64f9c27a8443df0c891696e62af071b39911

Analysis

max time kernel
140s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2024, 21:23

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General

Target

b83924561117ec052c5746555726da71.pdf
Size

35KB
MD5

b83924561117ec052c5746555726da71
SHA1

af51af00c5c3612b47dd005a22148dfd98c69e0e
SHA256

1c2ec0b069d82bc0db7ae781fcde64f9c27a8443df0c891696e62af071b39911
SHA512

0a3a07c9e88119349351537b704162b19293f261c8891ec7a72c4ad2584438a2924c6b4016f53ce64b6acc6b9ad4b1778185b62a1514bbf96231cc8dd25cb5ed
SSDEEP

768:Ffc+rlMddnSsB79a7MJmSuFbKwAi3mB91xFZj08sk+Nf4FY:id5Z7IAgS8Kw5WB9XFZhsh4+

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-1-5-21-1904519900-954640453-4250331663-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3944	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe
3944	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3944 wrote to memory of 3104	3944	AcroRd32.exe	99
PID 3944 wrote to memory of 3104	3944	AcroRd32.exe	99
PID 3944 wrote to memory of 3104	3944	AcroRd32.exe	99
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 1148	3104	RdrCEF.exe	100
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101
PID 3104 wrote to memory of 4336	3104	RdrCEF.exe	101

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\b83924561117ec052c5746555726da71.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:3944
- 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:3104
- - 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=F9E9D4C0BC643999A83E21C4FCF8298C --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=F9E9D4C0BC643999A83E21C4FCF8298C --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1148
- - 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=707ECFA141F40B6E2C0EAD7666C0AEFB --mojo-platform-channel-handle=1800 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4336
- - 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=13AF2FEE5CB50AC035A34B1F51AAB30B --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=13AF2FEE5CB50AC035A34B1F51AAB30B --renderer-client-id=4 --mojo-platform-channel-handle=2168 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3100
- - 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=75464F48696FD6C8BA1BF28B1C7BDDEB --mojo-platform-channel-handle=2556 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3576
- - 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=E7C9EBC529E4B4768CA380A03AF279F7 --mojo-platform-channel-handle=2092 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2192
- - 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=BB899E5A2ADA8E6E09BE233FD53ED119 --mojo-platform-channel-handle=2652 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:560

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1404 --field-trial-handle=2432,i,12161922670941700748,3348345705955601576,262144 --variations-seed-version /prefetch:8
1⤵
PID:3396

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
5a5c47cffac2cedbaef5223466d331ad

SHA1
9ad1459b8a9c9a141cff40148f92b2d788f1924d

SHA256
58366dd3c07c0f3dba53dadadd498ada64fd7a83a9b7ddd08d1081371a20b073

SHA512
9f811eef7337c8018403b9a4053486eb19117c519989105ccde04d08c916ce861d70d8f7c8186729a3fa1889b7820b636270917b9b05cdc9986be8519769efad

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