548ae9fefb268ab52e09b567bb07711f2359adfc5e46dfd524d26c08d4b29af0

Analysis

max time kernel
141s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
02/02/2024, 08:06

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General

Target

88feec4f2c6615e9408f6c48a4c85b49.pdf
Size

93KB
MD5

88feec4f2c6615e9408f6c48a4c85b49
SHA1

c19f6b05b6639418592d9e013f236e9d303c34de
SHA256

548ae9fefb268ab52e09b567bb07711f2359adfc5e46dfd524d26c08d4b29af0
SHA512

e818416af81ba521a20bfd2ec6b1738da2825d2f64afb3bcc91f9872309950d9b8c1d6b4196e7545f8f9b4f7cf71fb8f1615dd351ccfed233cdf439f3e79eb20
SSDEEP

1536:/oaZvKQEBQwVjn5krMmC8+otHiYEVVGJyUiYdWba9pvW13ZRCnPYW0pOdaKY:QAKhB5j5kq8Cr4iYl9pi3WPbda/

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-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe
4896	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4896 wrote to memory of 2796	4896	AcroRd32.exe	86
PID 4896 wrote to memory of 2796	4896	AcroRd32.exe	86
PID 4896 wrote to memory of 2796	4896	AcroRd32.exe	86
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3400	2796	RdrCEF.exe	89
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	RdrCEF.exe	90
PID 2796 wrote to memory of 3976	2796	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\88feec4f2c6615e9408f6c48a4c85b49.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4896
- 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:2796
- - 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=7DDD5CADE1E96621A6AB00C62660E555 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3400
- - 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=C075E6A021174BCB92CB6B7DE586838B --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=C075E6A021174BCB92CB6B7DE586838B --renderer-client-id=2 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3976
- - 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=79180B55AC6993E359BDB5971C7A1384 --mojo-platform-channel-handle=2176 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4244
- - 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=F040CEEE4686AB0FB7CA5FB1C253A222 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4340
- - 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=B75B0D042084790440F18931ABCA024B --mojo-platform-channel-handle=2252 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3332

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1124

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
bc5a13f07c70368797fc472c2098d8d0

SHA1
da51a2a4db63b69dc6303fe20e398107ad7156c6

SHA256
d6db417dd96993d3020d9ae5a601badf27646153b1a86a3440b21773af943d82

SHA512
d0b7a00c52ea5f900f80a5c3c509fd4c8e8fd2559634d85d8e4a971dc541e41e4d60fd5015b7fa2f20ef380904721dcac4f655bec74150ac4175728ed2153bd8

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