5989ab76772b1c5775e11a1ced1abc560520c3aa58a0d7ccccb3abaffb2f5c4d

Analysis

max time kernel
149s
max time network
150s
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, 00:20

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General

Target
b607b1b738b7762d2966c77fa39684eb.pdf
Size 142KB
Sample240306-amsmdseg24
SHA256 5989ab76772b1c5775e11a1ced1abc560520c3aa58a0d7ccccb3abaffb2f5c4d
MD5 b607b1b738b7762d2966c77fa39684eb
SHA1 11bd5a3634d5680bc81ab03c92f4a692e838b2ec
SHA512 698816d16611578e27a88fc5b688fef6a9041a8858f4e7b2845ca9508e01be91ca139e430b0696fd5edb035470507a2be4751535c9746a7cbfa4f091d014ab37
SSDEEP 3072:SB1ebqceRtV7DwaK7c+SsIYG2MQ4a30IjVeje0AAZ5sthhB4:SBwdMtV+7c+SsIqN73Vjsi4
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-399997616-3400990511-967324271-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4932	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe
4932	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 4876	4932	AcroRd32.exe	94
PID 4932 wrote to memory of 4876	4932	AcroRd32.exe	94
PID 4932 wrote to memory of 4876	4932	AcroRd32.exe	94
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 4436	4876	RdrCEF.exe	97
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98
PID 4876 wrote to memory of 2344	4876	RdrCEF.exe	98

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\b607b1b738b7762d2966c77fa39684eb.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:4932
- 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:4876
- - 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=B8CDE47755AD3E68111BE9BF6F4172F3 --mojo-platform-channel-handle=1760 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4436
- - 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=8FE913F21AC160BCE19D1018445950B6 --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=8FE913F21AC160BCE19D1018445950B6 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2344
- - 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=0A610FD2393CAB15A37E8F69D203D60B --mojo-platform-channel-handle=2168 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1240
- - 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=00B0C81A9FBE9C01E66FEC3DA9481821 --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=00B0C81A9FBE9C01E66FEC3DA9481821 --renderer-client-id=5 --mojo-platform-channel-handle=2304 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4612
- - 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=96EEBD3AB52F216544B0CBE8E0D03FD5 --mojo-platform-channel-handle=2444 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2760
- - 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=DD57EF60AB0798BF2EBC634A2AA7EE34 --mojo-platform-channel-handle=1916 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1296

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3240

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 df3e57fb5b07353bc3b838137d139a94fea7844c6ed420821dcdded00e136652
MD5 dbf8fa20a643b8462779d3b9e43777b0
SHA1 5752cdde8585bcfc8b8db81946a809fbbbc6fa5b
SHA512 c31b21c2b38a9e7cbb53ba4c7e6981890e1042c00f18d1fd4d1878c194a1ecc568ba9f967ca00d235aa38f8c6013d507ed8f8a00fc9ee21a95d175ec3fb9a740
SSDEEP 384:yesdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:H+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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