5c74f9186399f44f214476b19f4eeb58806bea2f1b146ca57c9802ec6267edf9

Analysis

max time kernel
148s
max time network
153s
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, 06:02

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General

Target

a3103047159638763002dd0cd232f988.pdf
Size

89KB
MD5

a3103047159638763002dd0cd232f988
SHA1

b9d4d7cdfa617ebaf5bbf2e8b2d1b338a0deefec
SHA256

5c74f9186399f44f214476b19f4eeb58806bea2f1b146ca57c9802ec6267edf9
SHA512

c989cc51542e4b83c73dc975e67c639085d4cbe5fc8baab8ade75a72fef60a1138200593958613251e94da37fc34c37990e418920e8e549c68cea1eb958f25d0
SSDEEP

1536:2Z7C54119sorkYRtBIVuEty4BLv8A5+71c7xyW3bL/SswWQpOCkwT:k7vsor3RtOty4ZWcVBbL6sfCz

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-1-5-21-3054445511-921769590-4013668107-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3144	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe
3144	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3144 wrote to memory of 2368	3144	AcroRd32.exe	90
PID 3144 wrote to memory of 2368	3144	AcroRd32.exe	90
PID 3144 wrote to memory of 2368	3144	AcroRd32.exe	90
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 1580	2368	RdrCEF.exe	91
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92
PID 2368 wrote to memory of 4360	2368	RdrCEF.exe	92

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\a3103047159638763002dd0cd232f988.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: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" --backgroundcolor=16514043
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2368
- - 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=4BDD57D5D8E39843A14BB514D64DC180 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1580
- - 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=5E3A6AB0AD7DAFA93705AB5D08558FAB --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=5E3A6AB0AD7DAFA93705AB5D08558FAB --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4360
- - 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=9F105D3A0E329BFDAB37495E10C9D626 --mojo-platform-channel-handle=2284 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4396
- - 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=29287FDFA1C32916A72E6952F103114E --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=29287FDFA1C32916A72E6952F103114E --renderer-client-id=5 --mojo-platform-channel-handle=2292 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:520
- - 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=260321BE24ECD5D920A82C32AE507C78 --mojo-platform-channel-handle=2560 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1676
- - 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=FE62880B0F50DC28B3FFF1D63AA25C1A --mojo-platform-channel-handle=2376 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4280

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2824

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

Loading Replay Monitor...

Downloads

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

Filesize
64KB

MD5
57d579f2d3426dd3439035cc24ad4b5d

SHA1
963b85c42365d3b597b66d28723b984f5275ac93

SHA256
b3f3077f17a4079d0dd2079e661432c0d407d9ffe83dba1860c78e4119925be0

SHA512
206219b1cd41d06686d95c919fb74d6704792b11cbee194ca0a2140d89ccd33299d156d1d0dc1ec28efe3284c18f44ee8bb3bfe6958abded8366c3fef8f79a34

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