b638ea866ed50129d00a9896657b34878b974d10946d6b8b83760c8799d7e1a6

Analysis

max time kernel
141s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 05:55

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

861be4bdef645c0e2f46ae751ef06ae2.pdf
Size

110KB
MD5

861be4bdef645c0e2f46ae751ef06ae2
SHA1

f48a08e503754d14292cf1b503e753abeabea4c8
SHA256

b638ea866ed50129d00a9896657b34878b974d10946d6b8b83760c8799d7e1a6
SHA512

b556962a0add4f667254c198c42184fb33e1219b98aff989ecfa51047782adfd48ad68927cb5f3174304a4a30f153d1b382fa834d16240ea95fbea3dac667216
SSDEEP

768:DktWZSVsV1YPveYmYGbLB/vbQNK775BoQ4mijVJipEhiD6T+bIxp0sO9PGVigGZw:M

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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2136	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe
2136	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 5012	2136	AcroRd32.exe	91
PID 2136 wrote to memory of 5012	2136	AcroRd32.exe	91
PID 2136 wrote to memory of 5012	2136	AcroRd32.exe	91
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 5040	5012	RdrCEF.exe	93
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94
PID 5012 wrote to memory of 548	5012	RdrCEF.exe	94

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\861be4bdef645c0e2f46ae751ef06ae2.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:2136
- 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:5012
- - 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=00EE4C983343D111A33D9079B1369C3D --mojo-platform-channel-handle=1728 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5040
- - 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=A0FD1C5F765C736555BE8D43A19E0DCF --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=A0FD1C5F765C736555BE8D43A19E0DCF --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:548
- - 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=902AD11244F0C3DAA80787DAB057B7FE --mojo-platform-channel-handle=2300 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2000
- - 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=D2211395B176602668351BEF608E959B --mojo-platform-channel-handle=1840 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2904
- - 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=ADF9340FBE47F59420952AA904BF2BD6 --mojo-platform-channel-handle=2504 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4272
- - 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=DB273787751AA7847729846F1806F675 --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=DB273787751AA7847729846F1806F675 --renderer-client-id=8 --mojo-platform-channel-handle=2400 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4908

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1368

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
5634a82259a2cff5b20d8e43eec3977c

SHA1
3b6f3e4c6eeda31035025538ec4ac45c086b6231

SHA256
f5fc25f252d3e53cc92dc955822f4a7a1577a3b56c72133ef155931aa68a283f

SHA512
31e01e12e794295864bdf0c5db42af15bc69ddefecd4f6666feb40911ebdf07cd1fb456333d8297e95827f1dc58845748563a24520a3565aad77eaa03b6161a9

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit