85f9aa85ffb78b96e4b7bc266dc7dee86ee6c4de47650ccc98863647a4befa97

Analysis

max time kernel
141s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22/12/2023, 14:25

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General

Target

c0cf9b7df8a70b2dff54c740161f7e35.pdf
Size

69KB
MD5

c0cf9b7df8a70b2dff54c740161f7e35
SHA1

2ee7734beee59717be68e0806d05630d1cdf60ac
SHA256

85f9aa85ffb78b96e4b7bc266dc7dee86ee6c4de47650ccc98863647a4befa97
SHA512

31ca7f93a899096bf4a2a4045f300e764b0d6bf11f0f7221bdb25ff254ad487353b7d378dc9d356c9d0fc24ec284edf43fc097ccdf299d24c7cccd050b7007d4
SSDEEP

1536:9v8+hdg4zTTUDjKhDykhqJ9iIb7FbHAD833HX6jIgPrOD:KYLA/MR8G833HdgP0

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
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe
3988	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3988 wrote to memory of 1948	3988	AcroRd32.exe	92
PID 3988 wrote to memory of 1948	3988	AcroRd32.exe	92
PID 3988 wrote to memory of 1948	3988	AcroRd32.exe	92
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 2968	1948	RdrCEF.exe	93
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94
PID 1948 wrote to memory of 1568	1948	RdrCEF.exe	94

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\c0cf9b7df8a70b2dff54c740161f7e35.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3988
- 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:1948
- - 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=1B2DB2B2BB2EE87FF657658C60E1390C --mojo-platform-channel-handle=1724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2968
- - 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=39C937A40C118B9DAD2B642C1A8724A8 --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=39C937A40C118B9DAD2B642C1A8724A8 --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1568
- - 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=BD2D93A2BE5A9808FACEB391C58E15CF --mojo-platform-channel-handle=2260 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1864
- - 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=CBDCE3B5BB6BC76B61C89AAEDAA2FADD --mojo-platform-channel-handle=2404 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1996
- - 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=514DB5F3CE9076726F23C473A6342F59 --mojo-platform-channel-handle=2520 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1868

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1040

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
c09585c8adf6eef2f6461c765259bb5c

SHA1
22a8abe6c9070c0e19bffefe8cec1542bf58fb40

SHA256
2c2d88341d117b1df76211d0c155c4eced67cffd67c0fbb31f1bc278a4ac2007

SHA512
a1ac2115bfdc1e9b06e3b940c372ccb49a489a8efbaa0acd7fb59d4f9a1f15a7f973b5888c6fb870fa6a6c87224917356afdf3d221b685d49f756dce6bd91f11

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