3f04d3267f818beec7a5f29a7780282bdf862a71669230b796b77700a494b55d

Resubmissions

21-01-2025 11:24

250121-nh1zvs1qak 10

10-01-2024 21:28

240110-1ba63sgfdp 10

Analysis

max time kernel
159s
max time network
174s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2024 21:28

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General

Target

163.5.169.28/SCAN-atoletter4.pdf
Size

170KB
MD5

6959cdb24cc37e1a25fcf1b9aed58fcc
SHA1

0659f4eb013280e21a057fa1c3843d4c0043ff90
SHA256

753a2e33fc19c1436650f392c23429728a97f4c941bd5493bc227ab04f6f231d
SHA512

b56f3c8584d30edcad363d1dc283c8b9edc0d13b4eb68755940f5400a6ea050a27677a1b744a0af1e7bf9ea8ff3af75a9991c20c153dbae0e64eafb3a863886d
SSDEEP

3072:ccAr61Wqu9r1RRrgz/hdcJ0XWLtSCi6dzRov5dMWm4yyLUQ:TBuxBgrI9cJDTMEyK9

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-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2656	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe
2656	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 2052	2656	AcroRd32.exe	89
PID 2656 wrote to memory of 2052	2656	AcroRd32.exe	89
PID 2656 wrote to memory of 2052	2656	AcroRd32.exe	89
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2232	2052	RdrCEF.exe	93
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94
PID 2052 wrote to memory of 2476	2052	RdrCEF.exe	94

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\163.5.169.28\SCAN-atoletter4.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:2656
- 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:2052
- - 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=FC23DDDA36C0F4E5DD225A37E243F34F --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2232
- - 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=573978455517DE3A471903BEC63C6508 --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=573978455517DE3A471903BEC63C6508 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2476
- - 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=5D82711A43C8D5BACEA3F5A1D018D971 --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=5D82711A43C8D5BACEA3F5A1D018D971 --renderer-client-id=4 --mojo-platform-channel-handle=2296 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1344
- - 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=136CF159F4B23DB6F5382D60E6C88C0F --mojo-platform-channel-handle=2556 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2388
- - 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=358FB9243D6267818D2921AD26FF4A00 --mojo-platform-channel-handle=2660 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:988
- - 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=EEE2F3C86742BE995F3A7D9243991E68 --mojo-platform-channel-handle=2648 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4456

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4976

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
17KB

MD5
9e600c2aef0ba1b3ee442ee3ef660bd4

SHA1
d1013703f2bc1fdac1a4dbaebc86060f1d6901a3

SHA256
3d5029c5b2fe0df05cff57d439853661e7c2c3828304d8271baafdbe60804ac3

SHA512
692c6c61fe554b6733ec14140bc744d1ef8a0abea31595d806c58247424445205159bbd9623df75645fb2819f9af168788c1fede2d98c5b5d320f64a90a98f01

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