eb1e223bbe9f13a7be8904331a6dcb3c44373013ab665861ad92209f596c0fe2

Analysis

max time kernel
144s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 19:54

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General

Target
8a3edbdb9ead08ce9f40aeb30ab86fe9.pdf
Size 1KB
Sample231226-ymvnrabbf9
SHA256 eb1e223bbe9f13a7be8904331a6dcb3c44373013ab665861ad92209f596c0fe2
MD5 8a3edbdb9ead08ce9f40aeb30ab86fe9
SHA1 7b037ce979de33f4450c5e0e7405d6e57e3bff3d
SHA512 e96b76900a83fc7b88b5c37f9f357deee6be61e930081816eba7f91c3d68d4e6c7a65f4e7088074d87aa51ffaf8feede63668523102ac74d6578e4c8443ef944
MD5 SHA1 SHA512

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-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2948	AcroRd32.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe
2948	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2948 wrote to memory of 2952	2948	AcroRd32.exe	90
PID 2948 wrote to memory of 2952	2948	AcroRd32.exe	90
PID 2948 wrote to memory of 2952	2948	AcroRd32.exe	90
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 1064	2952	RdrCEF.exe	92
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91
PID 2952 wrote to memory of 644	2952	RdrCEF.exe	91

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\8a3edbdb9ead08ce9f40aeb30ab86fe9.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:2948
- 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:2952
- - 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=25229BD48B77CC4A66F30A4CC086F453 --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=25229BD48B77CC4A66F30A4CC086F453 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:644
- - 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=180713334249DAB8103C81AB7A9B4529 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1064
- - 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=E5C4EB7044041A401DA140B252C38952 --mojo-platform-channel-handle=2344 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4568
- - 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=5B23F9559A9A78B0C5AA39443DD279EC --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=5B23F9559A9A78B0C5AA39443DD279EC --renderer-client-id=4 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4656
- - 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=6162EA7954D29195101260A0DCD34382 --mojo-platform-channel-handle=2568 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2376
- - 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=D69319544605DF017D8EA10F1246B990 --mojo-platform-channel-handle=2580 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3524

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1892

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

ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 64KB
SHA256 c1675ff754393c41f6c03388d46765fe9ab8c2e99ad13f21dec896f0b84c7ad3
MD5 fc8d7fe0d8bb0b32983e85c5de1786dd
SHA1 bb3f0c007e2efc5e697c795db9b51aa227ec25a1
SHA512 fc6246928283917a34ab7760f5df0a6c836323ec1128eaf8e46e65e2165a8e1fd1e840ff7adea0a96fc4aca72f4dd8652a8cf089efc3e7dc0d11574b931687be
SSDEEP 384:yepdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:4+elZsLQCZsL3hUS4
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 36KB
SHA256 b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
MD5 b30d3becc8731792523d599d949e63f5
SHA1 19350257e42d7aee17fb3bf139a9d3adb330fad4
SHA512 523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
SSDEEP 24:TLiXlzkrFsgIFsxX3pALXmnHpkDGjmcxBSkomXk+2m9RFTsyg+wmf9Mzm+Zs3tGl:TqlmFTIF3XmHjBoGGR+jMz+LhT
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 56KB
SHA256 111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
MD5 752a1f26b18748311b691c7d8fc20633
SHA1 c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA512 a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5
SSDEEP 192:wedRBvVrThe4p4/KhTB4p4CitZtkZsLRGVDbw6H3ph+v3YQa9:weZdThkKhBvkZsLRGlzh+vS9
MD5 SHA1 SHA512 SSDEEP

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