8a03c9fe6a205eea3e927096bcc7cbc4c696b0d61a3ce42feeea1e461d2b4983

Analysis

max time kernel
157s
max time network
170s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 14:22

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General

Target

39a8a5a7e4a0820a082a4cc076e34308.pdf
Size

103KB
MD5

39a8a5a7e4a0820a082a4cc076e34308
SHA1

b63492b91444ddfea2cfffb3ba9f7f2caafecf7a
SHA256

8a03c9fe6a205eea3e927096bcc7cbc4c696b0d61a3ce42feeea1e461d2b4983
SHA512

6e945c29a0598215363f89e1142c1cc00e631d680782dcc32274bf3d276cda4a681dddb1565ec17d632c2089c71ad9b14980829e93df3b6cb4f71a90ed4956fe
SSDEEP

3072:k3pmtkxK2oTHvscKFQuWk3kAFgj4YDGzXTfqH2ic1:kZTJMsx3ObGzXT4W

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1132	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe
1132	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1132 wrote to memory of 4372	1132	AcroRd32.exe	94
PID 1132 wrote to memory of 4372	1132	AcroRd32.exe	94
PID 1132 wrote to memory of 4372	1132	AcroRd32.exe	94
PID 1132 wrote to memory of 3480	1132	AcroRd32.exe	96
PID 1132 wrote to memory of 3480	1132	AcroRd32.exe	96
PID 1132 wrote to memory of 3480	1132	AcroRd32.exe	96
PID 1132 wrote to memory of 1000	1132	AcroRd32.exe	97
PID 1132 wrote to memory of 1000	1132	AcroRd32.exe	97
PID 1132 wrote to memory of 1000	1132	AcroRd32.exe	97
PID 1132 wrote to memory of 5024	1132	AcroRd32.exe	98
PID 1132 wrote to memory of 5024	1132	AcroRd32.exe	98
PID 1132 wrote to memory of 5024	1132	AcroRd32.exe	98
PID 1132 wrote to memory of 4576	1132	AcroRd32.exe	99
PID 1132 wrote to memory of 4576	1132	AcroRd32.exe	99
PID 1132 wrote to memory of 4576	1132	AcroRd32.exe	99
PID 1132 wrote to memory of 4368	1132	AcroRd32.exe	100
PID 1132 wrote to memory of 4368	1132	AcroRd32.exe	100
PID 1132 wrote to memory of 4368	1132	AcroRd32.exe	100
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 4344	4576	RdrCEF.exe	103
PID 4576 wrote to memory of 3360	4576	RdrCEF.exe	104
PID 4576 wrote to memory of 3360	4576	RdrCEF.exe	104
PID 4576 wrote to memory of 3360	4576	RdrCEF.exe	104
PID 4576 wrote to memory of 3360	4576	RdrCEF.exe	104
PID 4576 wrote to memory of 3360	4576	RdrCEF.exe	104

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\39a8a5a7e4a0820a082a4cc076e34308.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:1132
- 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:4372
- 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:3480
- 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:1000
- 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:5024
- 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:4576
- - 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=6CF3CF9452D6AFDEF37D0CF28932C0E4 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4344
- - 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=29E162553508FBBAC953A8463D47C2F0 --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=29E162553508FBBAC953A8463D47C2F0 --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3360
- - 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=94B2F62ED4F652FE08AF8CC2AABC24E6 --mojo-platform-channel-handle=2304 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1852
- - 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=5CE1893D63EAF6E32E90399BB1F01CDD --mojo-platform-channel-handle=1908 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3508
- - 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=6549BAFD14C2BC53E3FD52FEF0562CD3 --mojo-platform-channel-handle=1856 --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" --backgroundcolor=16514043
  2⤵
  PID:4368

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3048

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
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
e6797d3d65d8971b1be3212739cc95fe

SHA1
977dafb356ee1ce4da4dc866711b9486cb4ac8a4

SHA256
cea2f769c4b3e86d3593440cc7caddc6a44c7f950f22b42ff0a214a18606d5bb

SHA512
c42c1fb1aa373ccb81ad275a4bda21b3a16e7cc6dd87ddde75b9b26d9acfab20ba3261c041783980fb0e0fb58911b1aa80938766da6d53b4d326bf5247758ec7

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit