22a4851daf0efdf79bce913f2b973b01bfe6a315465664a2999bbe9ad87cbec1

Analysis

max time kernel
141s
max time network
53s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
11/06/2024, 11:36

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General

Target

Estv-06-2018-OSRc6s3l1Q.pdf
Size

218KB
MD5

5a8f79df8ab97155d377c76df2a364d7
SHA1

328d5bd3c278d1acbe812921d1c3625e4c414197
SHA256

22a4851daf0efdf79bce913f2b973b01bfe6a315465664a2999bbe9ad87cbec1
SHA512

b8da7d63a49ddc3a7f1b50b2e302dc9f2fd2b60ced15778e4b2326bab2a48972295ea9793d698afa99f4044d15480a09ffccf2756dc155a0f81fbf9ef043e62b
SSDEEP

3072:sM2K3pPA6Bb1vwHx1OEt/m2AqaOzCFb+fzvCVraVxnboZ7jyR8uwYCNp+iRyM0yO:PxA8bsxT4qLcb+qraLoZHi8uw1p+ZM0b

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4664	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4664	AcroRd32.exe
4664	AcroRd32.exe
4664	AcroRd32.exe
4664	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4664 wrote to memory of 4944	4664	AcroRd32.exe	86
PID 4664 wrote to memory of 4944	4664	AcroRd32.exe	86
PID 4664 wrote to memory of 4944	4664	AcroRd32.exe	86
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 3580	4944	RdrCEF.exe	87
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	RdrCEF.exe	88
PID 4944 wrote to memory of 1136	4944	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\Estv-06-2018-OSRc6s3l1Q.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4664
- 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:4944
- - 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=5AB859EB811232AC339CAB178C57D1F5 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3580
- - 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=BA63F18F45C8141A4DF418D7D004A5E9 --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=BA63F18F45C8141A4DF418D7D004A5E9 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1136
- - 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=DB09A155CE288CB93CA49A6365D364BE --mojo-platform-channel-handle=2292 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4688
- - 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=9039053D4DEB9FD0BC4C4F2ABF7D0FC9 --mojo-platform-channel-handle=1952 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4840
- - 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=B0848E439375429612F8B543357D1F4A --mojo-platform-channel-handle=2380 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3892
- - 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=FECC5BD0DE40EBBD812397BCBA8DA653 --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=FECC5BD0DE40EBBD812397BCBA8DA653 --renderer-client-id=7 --mojo-platform-channel-handle=2416 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4144

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2336

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
dbbc16b7ba938f9dac0e72f91fb381b6

SHA1
ead09da0fe43b9511d610eb877cdc53faee61d25

SHA256
ac697c14a5e5c3c41bb029345071d452aa062a447b65768c99da1c553a4395f5

SHA512
48df8fbad1dd2ecb2b896e6f8cf710cd984de3fc20b3344a00ee57db2361c0db05eff027350fd7bbfa1d74faab0280f832bb8dc391fa63c9832f629255e248e3

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