3e821fd5c96d214a55ef94d4dc2eb2140c3306ec046f929b5f7193b3d9d4cdc2

Analysis

max time kernel
148s
max time network
127s
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, 14:41

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General

Target
765cbdeeaa584afc28da5517391f0162.pdf
Size 63KB
Sample231226-r2ms5agcej
SHA256 3e821fd5c96d214a55ef94d4dc2eb2140c3306ec046f929b5f7193b3d9d4cdc2
MD5 765cbdeeaa584afc28da5517391f0162
SHA1 ef464a419ae35337ab649f1a0518aaaa5eba7b31
SHA512 5b8e81f31137853d1a3ccb1dd38478beac2bfa4609a8386cbafc998a862b9b5311bdd4069da4ff1e34c410d16c862f4d936eabc45e994718012f38b3f6ccf72f
SSDEEP 1536:2kelRo2gruqsGQ6VO+cjbVZXnS/nWlsjG3FDZUhbil6rReAzDJybf:ruRCT7cjhZXnugsjGIPQ0DJS
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-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe
4536	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4536 wrote to memory of 2568	4536	AcroRd32.exe	92
PID 4536 wrote to memory of 2568	4536	AcroRd32.exe	92
PID 4536 wrote to memory of 2568	4536	AcroRd32.exe	92
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4420	2568	RdrCEF.exe	94
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93
PID 2568 wrote to memory of 4552	2568	RdrCEF.exe	93

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\765cbdeeaa584afc28da5517391f0162.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4536
- 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:2568
- - 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=23974F263BBE70433A0F910ED7AEA79D --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=23974F263BBE70433A0F910ED7AEA79D --renderer-client-id=2 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4552
- - 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=83E27925D62FAA46E467F4DAAD9FCE50 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4420
- - 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=F8B5AD97A16AE7BAE656BE68E09233FE --mojo-platform-channel-handle=1788 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1188
- - 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=6D5EA56601643C27D84750CCE8C17D10 --mojo-platform-channel-handle=2332 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2404
- - 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=FBA671520528BBA3053AD2409F1DFD08 --mojo-platform-channel-handle=2400 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3988

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4080

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 9bcaa156ed35ef6be714e7699e381629a61d65ede9c5fd369e4fa4f7cad81641
MD5 22d5c18fd55d29dde2d3beade7d4d4df
SHA1 66d8535794ec8c6251acba5a9ea53a4af7c79e73
SHA512 c1ff7640589144d087dedde13d8e13bb719f07cca8c76a464d52dbbd73c41b5848b736b52b198a46e83f05c7863395510dfeb4c973d2e52f790dcd293a23ad10
SSDEEP 384:yewTdThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:f+elZsLQCZsL3hUS4
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 56KB
SHA256 6a3c5c4a8e57f77ecc22078fbf603ecc31fb82d429bd87b7b4b9261447092aef
MD5 c26ed30e7d5ab440480838636efc41db
SHA1 c66e0d00b56abebfb60d2fcc5cf85ad31a0d6591
SHA512 96cdb78bca3e01d4513c31661987e5646e6a8ff24708918aa0d66dfa3ca5d98af4862c9f38c4f41f933c345d2d3adfb1d34d1430b33f45f916f41a9872a030df
SSDEEP 192:xedRBsKhTB4p4CitZtkZsLRGVDbw6H3ph+v3YQa9:xe+KhBvkZsLRGlzh+vS9
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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