a6b807251f8dc843302acc8d0339a76c5a1875064f0953cdc3dba4f32eb29f6f

Analysis

max time kernel
141s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
10/05/2023, 16:38

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General

Target

=?UTF-8?B?TkRBLTEyNjIxOTQxNTYtTWF5MTAucGRm?=.pdf
Size

60KB
MD5

759d7f23eb55eea23c27a237b52b6b69
SHA1

03b81b74dea228b94655785a8b804a6204d4128b
SHA256

a6b807251f8dc843302acc8d0339a76c5a1875064f0953cdc3dba4f32eb29f6f
SHA512

05b21b26bdb56456de77b040b49888cc100f4868a174eff7b5c1e093afa8acbe5bdd814b178fa8aa8161553771d2fb26ffce4816d98043e42a24746b9dbe8ab8
SSDEEP

768:60jVjgocGH4FBncGH4FBQNsgecGH4FBscGH4FBIacGH4FBPYLnnndTVrXmm1wDsz:ZXcs8csxecstcstacsaMnnn76gm+

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-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2748	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe
2748	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2748 wrote to memory of 3812	2748	AcroRd32.exe	87
PID 2748 wrote to memory of 3812	2748	AcroRd32.exe	87
PID 2748 wrote to memory of 3812	2748	AcroRd32.exe	87
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 4152	3812	RdrCEF.exe	88
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89
PID 3812 wrote to memory of 1796	3812	RdrCEF.exe	89

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\=_UTF-8_B_TkRBLTEyNjIxOTQxNTYtTWF5MTAucGRm_=.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:2748
- 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:3812
- - 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=D218BC1E7C419923CD03445EC75F0C2C --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=2 --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=D218BC1E7C419923CD03445EC75F0C2C --renderer-client-id=2 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4152
- - 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=2C6BB4A126C9C1278D0E36F90011CC53 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1796
- - 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=151C92BD26DA110151B41F02D0D9467C --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=2 --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=151C92BD26DA110151B41F02D0D9467C --renderer-client-id=4 --mojo-platform-channel-handle=2320 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4984
- - 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=F977150376C8F27B4DFE7E072886CEC7 --mojo-platform-channel-handle=2440 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4192
- - 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=91356764A5FA1EBDB07C0A02F617C185 --mojo-platform-channel-handle=2712 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2596
- - 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=7B517895A2175E50E4AA2828D9AD6C88 --mojo-platform-channel-handle=2664 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3632

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1232

Network

MITRE ATT&CK Enterprise v6

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
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\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
9764f9fa28e36cc8babf8f4cdd0e8e25

SHA1
b3ea2a2db468dda20550b0f52d8a6bb39120e5e6

SHA256
c96aee0de56c44a87cb22afb895297ee7c06dbce6e05a351c902952f6deec1de

SHA512
12f4c69cf26d41f6f62b7c4bb113221d7ed614b3dfa1b07c89e9cdce27aecf3404fe326f17ca13e52b99efbe4b1e54c62270bf40cfb931f997d512601b5b4ac4

Download Submit