ff4c2ce3f4f8b2ff25f301a155176c840461f078d91282e0c4c426ffddae277c

Analysis

max time kernel
156s
max time network
162s
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 20:50

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General

Target

b8287988564a0d4d78e3b893dcfb892b.pdf
Size

87KB
MD5

b8287988564a0d4d78e3b893dcfb892b
SHA1

b2c575d1123a6a0182c5699fb794284f99a3708c
SHA256

ff4c2ce3f4f8b2ff25f301a155176c840461f078d91282e0c4c426ffddae277c
SHA512

00189f3f9a0d40f98bb23991da59f24aeb375d7f672692cee657b200857405e631ecc3354bd158e6ba42a4c83a71bdf9815e2e1593003991a43db202c8feffb2
SSDEEP

1536:xD8qu3Wa7mrASRu3GDVKIFgZLLdHYGX1aQyDshfS/ywpv0WYpO2xCoamEbGWK0wX:98qu3Wlrlu3Gg/RlFaQ5CjL2QSEbe9h

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-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2256	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe
2256	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 3236	2256	AcroRd32.exe	97
PID 2256 wrote to memory of 3236	2256	AcroRd32.exe	97
PID 2256 wrote to memory of 3236	2256	AcroRd32.exe	97
PID 2256 wrote to memory of 3732	2256	AcroRd32.exe	99
PID 2256 wrote to memory of 3732	2256	AcroRd32.exe	99
PID 2256 wrote to memory of 3732	2256	AcroRd32.exe	99
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 1084	3236	RdrCEF.exe	100
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	RdrCEF.exe	101
PID 3236 wrote to memory of 2296	3236	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\b8287988564a0d4d78e3b893dcfb892b.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:2256
- 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:3236
- - 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=E8F6156560F76CB6BD67B685B2978F43 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1084
- - 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=95CDC3E29C1F3FD3B67DAA88AF33AC51 --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=95CDC3E29C1F3FD3B67DAA88AF33AC51 --renderer-client-id=2 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2296
- - 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=80A64E9C11C6E56C566C5A6394E2E375 --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=80A64E9C11C6E56C566C5A6394E2E375 --renderer-client-id=4 --mojo-platform-channel-handle=2296 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4372
- - 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=6B5E843B59A65FE532CFD87B9F6EF037 --mojo-platform-channel-handle=2664 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4988
- - 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=2F4EAA8453A79253E60AB83FEEA5C483 --mojo-platform-channel-handle=1960 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3676
- - 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=99FACB14F5C37CB378D054135778E7F2 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1616
- 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:3732

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
44f4cca7af79967765e90dbdaa7a2d84

SHA1
d5b10e0c31ea482da5397973f65e0c97999e5641

SHA256
7d89194616353b1e7866dddcbbf79fde953deccc7b84e102c1577e16d77ca30b

SHA512
c9a265dace3c54a25b1ca1a44f96bcc456f932d7a3699d959b3e17802b1afe21087d53de8e2fae4edded2151c34f28a9619682e9610523149267d52b207a10c6

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

Filesize
64KB

MD5
47fa1cb09301a55508cb7422539aa96d

SHA1
5602edd428e90f23afdd8fdbe542833700a3baba

SHA256
444478b8ef98a95cfa81993ad6c77808e2c28a68418f626091f38d285fc7b4c2

SHA512
d8bcbec62d35e2c2ad247a0aae5640361aec31560875a86559cd25da80a1f35a3acf254e6bccaf8748bae5c0434d8dd36b5dd4869693093d0ef9110d9e297b3c

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

Filesize
18KB

MD5
f597acd7c200e50fcfba5ccbdb7fdadc

SHA1
f496fdbf584f7a43c5c22ede2fc3241410d7a1fe

SHA256
d158ba1ac780cfc83a8ab029ac656debc60751bf922bd9f223843100b77b4b22

SHA512
6700058eb01d56603b5593d372cad49df99d4d1c592b88de48fa3e0038b1e70bf6a5884549c08ea1942f357da1a77a1120bbeae3acb9e94c915073c4c40ea44b

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

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit