f39d903d67b2760cea063fafddf1dc920a3878795e726cfffc5c55b29a815281

Analysis

max time kernel
140s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2024 13:48

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General

Target

8c7b67d7fbc6f0627feccad4e603e1b0.pdf
Size

48KB
MD5

8c7b67d7fbc6f0627feccad4e603e1b0
SHA1

a73fd046b0794ad7283cd90ffa312aa19b68cd91
SHA256

f39d903d67b2760cea063fafddf1dc920a3878795e726cfffc5c55b29a815281
SHA512

1500855c5d8a843c3ef5641d2eb5711aad33992e3dcf136104da4d3bf37fa0f553457c12d635de9c73bf4a8fc5de999d76b037a886eb393f54d0763f7a335409
SSDEEP

768:odgGzpDtmOqlzh9wBOkNHB2k4GNyoDu9rpYD1T2XmAHlcm6lLON:fGFZpMkNGV8MXmAHlcPLI

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-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1144	1720	AcroRd32.exe	87
PID 1720 wrote to memory of 1144	1720	AcroRd32.exe	87
PID 1720 wrote to memory of 1144	1720	AcroRd32.exe	87
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 4396	1144	RdrCEF.exe	88
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89
PID 1144 wrote to memory of 624	1144	RdrCEF.exe	89

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\8c7b67d7fbc6f0627feccad4e603e1b0.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1720
- 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:1144
- - 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=7EA7EAAA079E8B1DB7568A0E988A6EE8 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4396
- - 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=3466DC38CE9949E4D04C2A0382A7AB89 --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=3466DC38CE9949E4D04C2A0382A7AB89 --renderer-client-id=2 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:624
- - 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=C74D77C3A3950999BF085EC4DFA10ABE --mojo-platform-channel-handle=2272 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5104
- - 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=F105663C736F0CB598C4D823EDB19AEC --mojo-platform-channel-handle=2416 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:640
- - 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=7EC0BA831852C5F232570316C2D2534C --mojo-platform-channel-handle=2512 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:516

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3412

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
55f878e9486b46e01dfd63a511781650

SHA1
1293cb1215c25dc5b36efaaa19aba71324e2a17b

SHA256
38ebda363acd987147a4cd277e4dc79a7053a6779f15cbc0870f1553b2a19d69

SHA512
ad95bd4adba2489c187e02b6cf0dfce1d04f1b92c2ad9ef64dbd869bff68b2c917d66017630cb1a8b6cca84f3493fd2eb35c24e8c76bc9cad891040add231d7c

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