670cf4cda1c9009af0361ead1f9a072d4279b2fb71855bd85a75c9653789493e

Analysis

max time kernel
141s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 17:36

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General

Target

877b3cf11a3af83132fc3b2c9d365248.pdf
Size

37KB
MD5

877b3cf11a3af83132fc3b2c9d365248
SHA1

6b105643eff5d7b2a02722676380f9007c112816
SHA256

670cf4cda1c9009af0361ead1f9a072d4279b2fb71855bd85a75c9653789493e
SHA512

5e560db14c3c5312f9c438d026f8ae8da34c48d33fd16778a986c9c7b3006af2542c02fe219dd3799ff2428b623d7755ab5e41e6ab65d9c29a201f38536c6643
SSDEEP

768:jw6anwdlfLtBajU9Cu0LL62lZ3TbxkxqxCh+Y5xVGRVUdD5:P7LP0U9CfhlZDbxkYN4xVGvUt5

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-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1840	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe
1840	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1840 wrote to memory of 4676	1840	AcroRd32.exe	88
PID 1840 wrote to memory of 4676	1840	AcroRd32.exe	88
PID 1840 wrote to memory of 4676	1840	AcroRd32.exe	88
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 4944	4676	RdrCEF.exe	89
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90
PID 4676 wrote to memory of 3292	4676	RdrCEF.exe	90

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\877b3cf11a3af83132fc3b2c9d365248.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:1840
- 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:4676
- - 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=2BE7E838FF4DA68A249BF25D3BCB2EA1 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4944
- - 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=9550952A3DC69E34921A3115600270CA --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=9550952A3DC69E34921A3115600270CA --renderer-client-id=2 --mojo-platform-channel-handle=1760 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3292
- - 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=DEF72B8DC5AEF88461AE165FA34ED011 --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3264
- - 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=0EEB9AF7CB128BDE9D0121756AA33965 --mojo-platform-channel-handle=1972 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3356
- - 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=C7C014EA12CE1D5B05DDED15F4EFBBB1 --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=C7C014EA12CE1D5B05DDED15F4EFBBB1 --renderer-client-id=6 --mojo-platform-channel-handle=2404 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2296
- - 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=1517162DB47BEB4E310E08942A14F11B --mojo-platform-channel-handle=2652 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:732

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3336

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
6a33d7a5930bee7050811fe65060c4a0

SHA1
f493497dfab9464e0bbc9b61b5becfdfaedbd5c3

SHA256
95097647029d09d8f33449d51813183c0a95e84140027cf66d241b8ec9607af0

SHA512
b04d88f66dababb935c5120a0efebb0dbb68a73d2f93925f0e628fc97e6f7e524e9bb7675c579c3d3a757b0029543f602e5944ab94a46ab172b55723e94fb5b5

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/1840-26-0x000000000A5C0000-0x000000000A610000-memory.dmp

Filesize
320KB

Download