269f900e4f115e96601667b266d7e051e2d786ca3e7511a5d2815faf3b34fd2c

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25/02/2024, 12:41

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General

Target

a3cefe6343832c51d3d70f4cc0d9a15a.pdf
Size

48KB
MD5

a3cefe6343832c51d3d70f4cc0d9a15a
SHA1

b782c733ceff5ec9d5e313a0722ab618a281c6c8
SHA256

269f900e4f115e96601667b266d7e051e2d786ca3e7511a5d2815faf3b34fd2c
SHA512

f51de7533a1d3fff49768b77e9d08e6c0d2c89447ff05adedd7bc91c5f618aa198b0b921e8624a0dea7c443764eb12fd8cb88fba8ea7306010c260af29e63cc7
SSDEEP

768:6pY3DET78vNboYY8xumnk6j3ObqM/MzBaO+vrbs6I+Pg3hj2rKyv/xHed3GZIX5O:h08BhuVo+bnMzf+TK+YNO/xHeV5Xi7

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-1-5-21-3316742141-2240921845-2885234760-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2260	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe
2260	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 4824	2260	AcroRd32.exe	91
PID 2260 wrote to memory of 4824	2260	AcroRd32.exe	91
PID 2260 wrote to memory of 4824	2260	AcroRd32.exe	91
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 2428	4824	RdrCEF.exe	92
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93
PID 4824 wrote to memory of 4464	4824	RdrCEF.exe	93

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\a3cefe6343832c51d3d70f4cc0d9a15a.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:2260
- 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:4824
- - 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=83130A5D80E7B8DB3569945776F6E2D1 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2428
- - 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=943E7C88550B3CB2AA6689786AED2321 --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=943E7C88550B3CB2AA6689786AED2321 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4464
- - 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=4A8A78265E997EBC35A1D38837EF371B --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3336
- - 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=17F741ABCA7158E659DFE184E9DE83A1 --mojo-platform-channel-handle=1928 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3144
- - 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=3AD88A79483937940423598943289E0C --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=3AD88A79483937940423598943289E0C --renderer-client-id=6 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1256
- - 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=B6EED2C8565DEAE83B88D63AB64D75CD --mojo-platform-channel-handle=2532 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2376

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4800

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
42fae96c5bb639402dbad347a3d90bf0

SHA1
d2ad54a9219ddeea631f5b522eab3e28899476f7

SHA256
b6a123c185fb980cb460a1cd04a352174d65ec32c225f5d2b3df8abe1c206e04

SHA512
9ab0579a0845d7bd95d8138f9a3f32d53dce56278040ef083df3e9ea2326d97b1789d229c6030cb324fa64021343656559a99bc7bd5276131e283efd1244feca

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