26da39e0973c40547383fda5ddc9aa35ef74a421b6be9c69c862ae58c452d1ee

Analysis

max time kernel
144s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2023 10:39

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General

Target

0a3cff98edcbcdf61662cb61faeec979.pdf
Size

89KB
MD5

0a3cff98edcbcdf61662cb61faeec979
SHA1

5c34314161df389c9ca5d290043fedd7ebcca730
SHA256

26da39e0973c40547383fda5ddc9aa35ef74a421b6be9c69c862ae58c452d1ee
SHA512

1381d3eaa60f7f4c5d58c823133259715890eac2f6ecf4a202af096de5620f00cd57bc8b46e94ba79d0901c5f366152662d2563b320773e545f7c52b55984a0d
SSDEEP

1536:kaT3qlWeaAuxb5wskIUynKXWz4Y7tGX1CRp12RA4yNaEdWso4dp5qp6HP6WwpOS9:pTa0eaTNkCKXjY7EX1U121eaEWe5Fvt+

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-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2240	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 1496	2240	AcroRd32.exe	92
PID 2240 wrote to memory of 1496	2240	AcroRd32.exe	92
PID 2240 wrote to memory of 1496	2240	AcroRd32.exe	92
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 4032	1496	RdrCEF.exe	93
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	RdrCEF.exe	94
PID 1496 wrote to memory of 1540	1496	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\0a3cff98edcbcdf61662cb61faeec979.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:2240
- 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:1496
- - 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=41807705537019DAA9730F94658E1A80 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4032
- - 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=13B99E558D4C75C7FCC21CDA3A29DCFA --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=13B99E558D4C75C7FCC21CDA3A29DCFA --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1540
- - 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=B93475D7930F4F4131918F992053CD48 --mojo-platform-channel-handle=2176 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1108
- - 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=A8C66D3824096317E3D2BA88D4E95B46 --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=A8C66D3824096317E3D2BA88D4E95B46 --renderer-client-id=5 --mojo-platform-channel-handle=1972 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3492
- - 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=4DCE87811554D1E627B1E09BF4CEF2B7 --mojo-platform-channel-handle=2460 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3188
- - 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=ABF29E039FBC6E28F0F0B78860C48F6F --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4760

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3460

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
9e0113d469ebea2a2737217f24ec6270

SHA1
5a501399fd320521e6b954b5e9ce3c2874cd3829

SHA256
548c30674c3a00a1affd91f71dd69be7a8a98ae0a915fc1bd2f5c7451509d1f9

SHA512
afa2a52d5608f723a0d951ab7ad9a408fb07d2b791c2fe3c5ef34c723843de6dc6533a8d9d19af84204b3c7aa34963ac8cbf0f2d0141e58e948a829bbf7d6af8

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
memory/2240-27-0x000000000B720000-0x000000000B741000-memory.dmp

Filesize
132KB

Download