ab8973775e35904cd1cbee05e4061b204c9dfb0170f21904959b14b6576766fd

Analysis

max time kernel
140s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
25/04/2023, 16:09

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General

Target
[email protected]_20230421_143358.pdf
Size 128KB
Sample230425-tma7wsbd48
SHA256 ab8973775e35904cd1cbee05e4061b204c9dfb0170f21904959b14b6576766fd
MD5 0b976b4a3c3e9c1345a51c617d990c6a
SHA1 026732af7240a7eab98c7d3536f6009e6de6391c
SHA512 8ff41befe04b9c66ea0797f87d5594efc4808b5b0572802da00916c1df36587762e1e94d7507d2ed070bfd32364c6d91269b180c27d0b74575a72a15a38377eb
SSDEEP 3072:X4D9+coxoQ71gQ0IPZ7ocu/MF11I8QEUJJzNSG4ugr+3:o6xoQxgYPZ8cw8IUUJJBl
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 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-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5036	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe
5036	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 5036 wrote to memory of 2784	5036	AcroRd32.exe	86
PID 5036 wrote to memory of 2784	5036	AcroRd32.exe	86
PID 5036 wrote to memory of 2784	5036	AcroRd32.exe	86
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 4572	2784	RdrCEF.exe	88
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	RdrCEF.exe	89
PID 2784 wrote to memory of 2804	2784	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\[email protected]_20230421_143358.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:5036
- 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:2784
- - 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=58BDFE210BDE9921394FC8433A793CAA --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4572
- - 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=29A29E2596EC4F442A558B3F55413A30 --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=2 --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=29A29E2596EC4F442A558B3F55413A30 --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2804
- - 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=BABDEB31702A3ED2128656940C772D1F --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=2 --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=BABDEB31702A3ED2128656940C772D1F --renderer-client-id=4 --mojo-platform-channel-handle=2296 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4188
- - 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=F43828B0A6486505494EE3916915FD7F --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:840
- - 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=658652D8953DFE57EB0C9642F0B46F23 --mojo-platform-channel-handle=2564 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1028
- - 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=DAA1EF72A43F0D3FF8F1CA00911BF0E1 --mojo-platform-channel-handle=1808 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1592

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2916

Network

MITRE ATT&CK Enterprise v6

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 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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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 64KB
SHA256 8f63150fdcd1d400712725452ba5591854672badbf8afb004da5b9d4cf84088c
MD5 95c6935c28c56faae56eddd782342d22
SHA1 426197ebb36b4b5992441c98643809e72433e33c
SHA512 90662e29e03a531ca77822378b1116ee42d6deeabcf6e1b9b2516001fdffa20d41cdc8b27218990c2068b32bf25336cdd8d997520c630cf3f91359c6a1a6dff0
SSDEEP 384:yejdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:G+elZsLQCZsL3hUS4
MD5 SHA1 SHA512 SSDEEP

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