5bc04140f39e04ba6f1b4cabae7a74c2189eea600c85076fc9a66ce9cf98d7f8

Analysis

max time kernel
81s
max time network
67s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28-02-2024 21:15

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General

Target

Customer Statement - US-00191.pdf
Size

138KB
MD5

5a3d33421179aef597e604f28afd3c9d
SHA1

c70bcf958f77756d1e485e15c2de98fb2023cc6f
SHA256

5bc04140f39e04ba6f1b4cabae7a74c2189eea600c85076fc9a66ce9cf98d7f8
SHA512

c615aa7ff2b66438b4b342c9e10b95e4f3a7c3d8137233088f52b1e5a6372964c4f0368d706cd3fc7481aea5828dec1550021b2ed54668490db60f1a4565e571
SSDEEP

3072:0sWs/xw/234n4z+BC3m7r9rpi/zOQDBUbA4goK1IOgRyD/Ao5A:9Ws/xxZ+BXrs7XtUb6PngREA

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-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3592	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe
3592	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3592 wrote to memory of 1680	3592	AcroRd32.exe	94
PID 3592 wrote to memory of 1680	3592	AcroRd32.exe	94
PID 3592 wrote to memory of 1680	3592	AcroRd32.exe	94
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 60	1680	RdrCEF.exe	95
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96
PID 1680 wrote to memory of 3664	1680	RdrCEF.exe	96

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\Customer Statement - US-00191.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:3592
- 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:1680
- - 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=BF27843462D785332CFAE8BAAF893CA7 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:60
- - 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=E857B65317352B577D56996FBA02256E --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=E857B65317352B577D56996FBA02256E --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3664
- - 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=BE51A1DB5C9D497979820403460E5438 --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3612
- - 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=AECFCD56220DFEEB29212D5322971824 --mojo-platform-channel-handle=1904 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2300
- - 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=F144E11831D19D06E77E2E46A127FF13 --mojo-platform-channel-handle=2364 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3804
- - 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=5B2FC26DFEFA90F853CDC7CC3BE813AA --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=5B2FC26DFEFA90F853CDC7CC3BE813AA --renderer-client-id=7 --mojo-platform-channel-handle=1912 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5036

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4536

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
11f12257f7874a9c9e9b5c84042d2161

SHA1
ca8d0b90d99dd8497b154dfdffd0e008131ce767

SHA256
f62b51d4d71eb3811e19f3e5a28b2c3316c066f91674db8cfb3eec315c96f23c

SHA512
731da615de26dc0a0cf7a678a2406e631fb9f8dd6dc9a2c495662a00746f4c6fb6b6b9a3aa626b5ccf5b7aea2c74cf8bf5c8e46a15cd071170b2f22346cbfa2e

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
memory/3592-26-0x0000000009C70000-0x0000000009CC0000-memory.dmp

Filesize
320KB

Download