77936f544f7fea6184febd7399e37e5e8b6fefdb4cb5315d230c7c52f67390a7

Analysis

max time kernel
141s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2024 02:30

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General

Target

790b3246ea0bf8d9dd8884476f45d76c.pdf
Size

34KB
MD5

790b3246ea0bf8d9dd8884476f45d76c
SHA1

1b145ffeb2ef458dea3d8c66e6da35f1f1fa7631
SHA256

77936f544f7fea6184febd7399e37e5e8b6fefdb4cb5315d230c7c52f67390a7
SHA512

9a99f4aa484eebfbf8be5c8c78b94aaa00fec107e95675fdc5dce55a3bf818e90861c3c670240bffa8750a1e7a104fcd3a2fad45a22eacf1a195a152c1df5045
SSDEEP

768:agGzpDMpyVYNRKCzU56nknXjkKsFlmpAz/AW0tnLt2nI9GyULimr549Pj9KMWqse:HGFApbXIJtLl9GI449PJTAe

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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe
100	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 100 wrote to memory of 2496	100	AcroRd32.exe	91
PID 100 wrote to memory of 2496	100	AcroRd32.exe	91
PID 100 wrote to memory of 2496	100	AcroRd32.exe	91
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 3944	2496	RdrCEF.exe	92
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	RdrCEF.exe	93
PID 2496 wrote to memory of 4120	2496	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\790b3246ea0bf8d9dd8884476f45d76c.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:100
- 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:2496
- - 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=AB45D204046E42460A2932DC93FA3C95 --mojo-platform-channel-handle=1712 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3944
- - 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=5CEA8F591D6320B9A908718203209DAF --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=5CEA8F591D6320B9A908718203209DAF --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4120
- - 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=B33BC3EA672D0B66A574251508459888 --mojo-platform-channel-handle=2140 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1812
- - 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=0F31167E3686AAC81F772941FEBE1457 --mojo-platform-channel-handle=2384 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5008
- - 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=868B38FAE6D6EA2FC1925A22E2F4CB08 --mojo-platform-channel-handle=2000 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3284

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3708

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
0dde4e102835a3e683ae8bc3dd3bdd7c

SHA1
9948e703dd00b1af5c43571e4f6c32416be900f2

SHA256
a4343294757d70f70a5982165b73e9a48b2e0261ba68f494ff8fabcde82152c5

SHA512
9b501df4733cce11031eb08779d9704cc27b1ce9c2b97ded8b1effcf7215fcb9c2aa8eee16062cbf47cab189f0d3c530a5bc935b23a280b30581b550dc39efbf

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