91f40aa4fd77ad46dbc6db7e6511ed38242a02a79a1eb1d381e210896a8f3c87

Analysis

max time kernel
141s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17-04-2024 01:25

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General

Target

91f40aa4fd77ad46dbc6db7e6511ed38242a02a79a1eb1d381e210896a8f3c87.pdf
Size

83KB
MD5

2c9543d92c997b13dbf845f3a26364a9
SHA1

e99bb478d2efb6aeb27fb68e981bcb2a5c589a8a
SHA256

91f40aa4fd77ad46dbc6db7e6511ed38242a02a79a1eb1d381e210896a8f3c87
SHA512

043e900ed63867c155a2b29258ea712b56d7d2e6b939848d69b2ee71bfa17b671682ee980a351f3cc962315012e04e20ecc9a1078df3a1c7bbcc38a44beba904
SSDEEP

1536:Z5e0JcqcJjSQ4KfRh8nSm7rmTyQF5cBACj6vSnTftSQ5vJDgMO2ITQg:reOcJGORh8SrTyQFiACyytS6DROzQg

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-1-5-21-259785868-298165991-4178590326-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4452	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe
4452	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4452 wrote to memory of 2000	4452	AcroRd32.exe	93
PID 4452 wrote to memory of 2000	4452	AcroRd32.exe	93
PID 4452 wrote to memory of 2000	4452	AcroRd32.exe	93
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 4476	2000	RdrCEF.exe	94
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95
PID 2000 wrote to memory of 5112	2000	RdrCEF.exe	95

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\91f40aa4fd77ad46dbc6db7e6511ed38242a02a79a1eb1d381e210896a8f3c87.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:4452
- 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:2000
- - 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=224E2A47BA960B2ABEF8E1B8BC01FB55 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4476
- - 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=5FC4047806FEFDF9427EE79E844140A4 --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=5FC4047806FEFDF9427EE79E844140A4 --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5112
- - 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=B24CF8122B912476321A64D773E1882C --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4648
- - 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=2D8DDFBB21CB75202FD25229ED1FA38D --mojo-platform-channel-handle=2348 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1224
- - 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=272FF1DF852AF4E41766FBA4BCAF39BB --mojo-platform-channel-handle=1964 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4872
- - 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=0A2B1A6B3F07F785C86717BAFF065B97 --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=0A2B1A6B3F07F785C86717BAFF065B97 --renderer-client-id=7 --mojo-platform-channel-handle=2532 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4860

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2804

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

Loading Replay Monitor...

Downloads

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

Filesize
64KB

MD5
7843532f2191009bf816404e5a60a41a

SHA1
4883530b8481b66e8f1dc1adf8a72ec1250b8aa8

SHA256
dcf3332fc499b511b143ac86bbc8ad74ba350eb0ef0834a03e82f23438c829e1

SHA512
6b6668404d5e7e1f0f50dee95a06fc3e3d5298ecae2852cce0049b59637880f06ce61226d27e6f6ae0b2bff4470c0bd0ba2caf48e2c2b677ba8a80e232f7b101

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
memory/4452-26-0x000000000A8A0000-0x000000000A8F0000-memory.dmp

Filesize
320KB

Download