3b8436512a13ab0145f919b0c7855f409bee5146ef931c4ef86819fe0f05acbc

Analysis

max time kernel
136s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
03/05/2024, 00:27

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General

Target
peepdf.pdf
Size 13KB
Sample240503-arzaqscd87
SHA256 e9958b248574775e32c8bd6d2a38f1689a1ec9124f1c62e5f887ec3fe93830b5
MD5 3895e6a72976929f8f5b414ffad6d42f
SHA1 70f20031a4019bdd97b25290fc3ebc9cb4b7ddc9
SHA512 9438a216e22007ed487f30533cad5eeddd9c95ace87b2bf7d954f303702fa59fe589d81805d3e041fdeae631f6f84a53a08b21fece8dd992a16a391e5c857fdb
SSDEEP 192:TkXwcpR3Xx/2TFFjlH11PjAEborQITdzUVZNxE5fylSY8qzV+VQLNxAY6p3C2rTo:K1DXN2T10EboEIs2c0Y82HAYBqk+e
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-1-5-21-3726321484-1950364574-433157660-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2984	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe
2984	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 4796	2984	AcroRd32.exe	96
PID 2984 wrote to memory of 4796	2984	AcroRd32.exe	96
PID 2984 wrote to memory of 4796	2984	AcroRd32.exe	96
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 5060	4796	RdrCEF.exe	97
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	RdrCEF.exe	98
PID 4796 wrote to memory of 2856	4796	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\peepdf.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:2984
- 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:4796
- - 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=ED74A8861444D6D0B494DE55A5C37243 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5060
- - 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=A8B50264FEE0959D16189E28119264FC --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=A8B50264FEE0959D16189E28119264FC --renderer-client-id=2 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2856
- - 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=626434B3F56759891E5BB36787A17BD3 --mojo-platform-channel-handle=2316 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4464
- - 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=6C45CC3E0FCDD43966B3E4483B91CAAE --mojo-platform-channel-handle=1916 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4460
- - 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=A861210946A30761C11642050960F559 --mojo-platform-channel-handle=1960 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2500

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2304

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 79c0e1f022923c72370ef53b8e088d94ec85d1f3b7ca82b43f41890ec2403cbd
MD5 f1e8dfb0fece5283a9836b978e99d52b
SHA1 475c689b94e3b75535855b05df922eaba9f458c1
SHA512 0e34f5e7469ffb4c703763ee6711caef65639a4b1606778b9f33384af364b0908a8c9d741ca3e3c120a0bbe463130095f2f402a16af65a811a6f97358646f058
SSDEEP 384:yeXdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:y+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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