55f6a88dc02579e8f6f191ee9ec91f66067b5d362434877cfbc325e4bf23aef1

Analysis

max time kernel
151s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
22-09-2023 04:31

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General

Target

5051_file_stateless_paper.pdf
Size

4B
MD5

0b497b33b1a05057bc1634e607170bf6
SHA1

149ecfc76f45c53fadcc1843df6755d4ae25aa2a
SHA256

55f6a88dc02579e8f6f191ee9ec91f66067b5d362434877cfbc325e4bf23aef1
SHA512

d5e5ddf7a6ac7001680d2387a05f2d7006281d693d41165be9f6bb4e1db717b6532b27e40fac8db35733e31f80e442a745033fdd1b4a2f07f1daa5e4d75b1242

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-1-5-21-1574508946-349927670-1185736483-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1884 wrote to memory of 4728	1884	AcroRd32.exe	87
PID 1884 wrote to memory of 4728	1884	AcroRd32.exe	87
PID 1884 wrote to memory of 4728	1884	AcroRd32.exe	87
PID 1884 wrote to memory of 1532	1884	AcroRd32.exe	88
PID 1884 wrote to memory of 1532	1884	AcroRd32.exe	88
PID 1884 wrote to memory of 1532	1884	AcroRd32.exe	88
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 548	4728	RdrCEF.exe	89
PID 4728 wrote to memory of 872	4728	RdrCEF.exe	90
PID 4728 wrote to memory of 872	4728	RdrCEF.exe	90
PID 4728 wrote to memory of 872	4728	RdrCEF.exe	90
PID 4728 wrote to memory of 872	4728	RdrCEF.exe	90
PID 4728 wrote to memory of 872	4728	RdrCEF.exe	90
PID 4728 wrote to memory of 872	4728	RdrCEF.exe	90
PID 4728 wrote to memory of 872	4728	RdrCEF.exe	90
PID 4728 wrote to memory of 872	4728	RdrCEF.exe	90
PID 4728 wrote to memory of 872	4728	RdrCEF.exe	90
PID 4728 wrote to memory of 872	4728	RdrCEF.exe	90
PID 4728 wrote to memory of 872	4728	RdrCEF.exe	90
PID 4728 wrote to memory of 872	4728	RdrCEF.exe	90
PID 4728 wrote to memory of 872	4728	RdrCEF.exe	90
PID 4728 wrote to memory of 872	4728	RdrCEF.exe	90
PID 4728 wrote to memory of 872	4728	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\5051_file_stateless_paper.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1884
- 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:4728
- - 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=48B609A20E437AB8E3CA3A92C156D23C --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=48B609A20E437AB8E3CA3A92C156D23C --renderer-client-id=2 --mojo-platform-channel-handle=1732 --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=F497157C9CAF5A13CBEF79185B7B2DC2 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:872
- - 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=FF8928708FC17D2AA1A276DD4C4EA9B1 --mojo-platform-channel-handle=2276 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4908
- - 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=7900C4105FEA97F60D4A62B1DBE91A28 --mojo-platform-channel-handle=2380 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4604
- - 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=6887C2AAF2079BBBD059E0DE0ABCDA1B --mojo-platform-channel-handle=2344 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5100
- - 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=8943F06A79B5EA209E752C08C64D3B00 --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=8943F06A79B5EA209E752C08C64D3B00 --renderer-client-id=8 --mojo-platform-channel-handle=2280 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2064
- 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:1532

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4780

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
eec1427d2b898d4a85bb2c02143e5131

SHA1
a12f51e3240002ce95407563919793fa13a9c0f1

SHA256
60f5113ff8c41216a06363f10b767ebed52029294ca877bc7086facb43af78ae

SHA512
e46d03383ed222a78212c4f61bd32c17548f56330a8a96bfd58f25c0e07a185917395cbb3c9ffd2bb8e4bc1ac90eda1f71c6c7a8c10bff8246ef5f6395071ffd

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
C:\Users\Admin\AppData\Local\Adobe\Acrobat\DC\SharedDataEvents

Filesize
12KB

MD5
ca613fdcc6c46adbc23e6dd21bc03895

SHA1
38f4c0865bdedc6aec60ac94523bf023259a7056

SHA256
a0cec8b437dfe4d2757034e463af5f562f3906b3ff5786eb350150a37db9186b

SHA512
294fbba3d1387f7f18783a7d8ce7349c6113263733cc8da2d4b683770e39e84824b523ec415f888a5c12702cb53813f86eb8b2a978d5dece0c27fd897abcc7cb

Download Submit