7aa9f8e347f6a89b3a577f105e1cb5f90713b61fa7d585cd23a0a54c4066f11a

Analysis

max time kernel
143s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 00:38

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General

Target

21fc5b47e3bb6fe1c1b97effdbba71f7.pdf
Size

77KB
MD5

21fc5b47e3bb6fe1c1b97effdbba71f7
SHA1

65c5b8cef9802f257497395c40a770794bbe6060
SHA256

7aa9f8e347f6a89b3a577f105e1cb5f90713b61fa7d585cd23a0a54c4066f11a
SHA512

e31f157ba868905033bc2226302f29bfcdbe79532668d50b9cdafa0881ebfce942184c0673f975e2b4c2a3fe70917311bef1e77da8c2d359a76f5ac7c7c9ebdc
SSDEEP

1536:Ewx4HPJwpmMRvgTa1GhxCALvYIVFJACyKiWySIoW7UOeWQpOCQH0:p4HP6pmMR+wA79JNyK0SIRQORCn

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-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4596	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe
4596	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4596 wrote to memory of 4428	4596	AcroRd32.exe	93
PID 4596 wrote to memory of 4428	4596	AcroRd32.exe	93
PID 4596 wrote to memory of 4428	4596	AcroRd32.exe	93
PID 4596 wrote to memory of 3412	4596	AcroRd32.exe	95
PID 4596 wrote to memory of 3412	4596	AcroRd32.exe	95
PID 4596 wrote to memory of 3412	4596	AcroRd32.exe	95
PID 4596 wrote to memory of 3000	4596	AcroRd32.exe	97
PID 4596 wrote to memory of 3000	4596	AcroRd32.exe	97
PID 4596 wrote to memory of 3000	4596	AcroRd32.exe	97
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2736	3000	RdrCEF.exe	99
PID 3000 wrote to memory of 2184	3000	RdrCEF.exe	100
PID 3000 wrote to memory of 2184	3000	RdrCEF.exe	100
PID 3000 wrote to memory of 2184	3000	RdrCEF.exe	100
PID 3000 wrote to memory of 2184	3000	RdrCEF.exe	100
PID 3000 wrote to memory of 2184	3000	RdrCEF.exe	100
PID 3000 wrote to memory of 2184	3000	RdrCEF.exe	100
PID 3000 wrote to memory of 2184	3000	RdrCEF.exe	100
PID 3000 wrote to memory of 2184	3000	RdrCEF.exe	100
PID 3000 wrote to memory of 2184	3000	RdrCEF.exe	100
PID 3000 wrote to memory of 2184	3000	RdrCEF.exe	100
PID 3000 wrote to memory of 2184	3000	RdrCEF.exe	100
PID 3000 wrote to memory of 2184	3000	RdrCEF.exe	100
PID 3000 wrote to memory of 2184	3000	RdrCEF.exe	100
PID 3000 wrote to memory of 2184	3000	RdrCEF.exe	100

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\21fc5b47e3bb6fe1c1b97effdbba71f7.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:4596
- 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⤵
  PID:4428
- 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⤵
  PID:3412
- 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:3000
- - 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=63F12321089F9C75E41AA6FD4A887407 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2736
- - 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=6C2F15D75BA0147DF4E493D404B7194F --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=6C2F15D75BA0147DF4E493D404B7194F --renderer-client-id=2 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2184
- - 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=47C1F42D9EDA89F4CA53730757001EA8 --mojo-platform-channel-handle=1796 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4068
- - 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=6E60A7C580CEB824356DE667C9A278F9 --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=6E60A7C580CEB824356DE667C9A278F9 --renderer-client-id=4 --mojo-platform-channel-handle=1616 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4480
- - 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=8DED8312773E272EC6F3A5A27BDE85D2 --mojo-platform-channel-handle=2576 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3400
- - 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=E46FC4C1B087537C3DBEA2E49C4E763F --mojo-platform-channel-handle=2660 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4000

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

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

Filesize
64KB

MD5
44f4cca7af79967765e90dbdaa7a2d84

SHA1
d5b10e0c31ea482da5397973f65e0c97999e5641

SHA256
7d89194616353b1e7866dddcbbf79fde953deccc7b84e102c1577e16d77ca30b

SHA512
c9a265dace3c54a25b1ca1a44f96bcc456f932d7a3699d959b3e17802b1afe21087d53de8e2fae4edded2151c34f28a9619682e9610523149267d52b207a10c6

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

Filesize
64KB

MD5
5622c2c0650b2f4e9eb5569ef8767215

SHA1
ddb494e861c7b8ea4073a287c95323b0fe90841d

SHA256
92c617421c6cf2d5bf2a0566f38553d3c2d71d2eace791912574eaf64590de07

SHA512
542fd7681a580eb84bc916537bad8a4f27158bc439cc5d1f5200e508556d0c72d42262f78830f7561b48dc0dd11500657eec0bc1f1492ffed106147269214a0b

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