f38893f6750a755f163cb833b6aa9c9af5b1c3cbffa2d2f331f890468aa8db42

Analysis

max time kernel
60s
max time network
65s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
10/05/2024, 04:11

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General

Target
w2_1040 tax forms/1099Misc.pdf
Size 220.0MB
Sample240510-er5vqsde42
SHA256 133be53c484a7d2f18f7919a393b60f4276f7900417bcd7bfecdbe977e750fb4
MD5 65062141a5aa00068b12b74a85d67b41
SHA1 5ba2d2c53978b4de3a123d79fa3ed60e93d86a48
SHA512 d9bdde0c7293acbdf4410b454cfd9a1ed6d645b69a108d88292cc3008d42909934d269d03c94d06e4868b1b2d0c6b0a260a3dfaacca9338e227452c307998231
SSDEEP 3145728:96lH+byk0ZggBznCh2HCea5bQ92NmDVr9XqnZGWp:
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3004	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe
3004	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 1076	3004	AcroRd32.exe	91
PID 3004 wrote to memory of 1076	3004	AcroRd32.exe	91
PID 3004 wrote to memory of 1076	3004	AcroRd32.exe	91
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 3408	1076	RdrCEF.exe	92
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	RdrCEF.exe	93
PID 1076 wrote to memory of 4140	1076	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\w2_1040 tax forms\1099Misc.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:3004
- 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:1076
- - 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=B5C782A5C286E61050DAE7EE221FD64F --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3408
- - 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=95BC16842375CA3B8B9522244AC381FC --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=95BC16842375CA3B8B9522244AC381FC --renderer-client-id=2 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4140
- - 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=8D97987652B2996C4CBA29A79B75F16B --mojo-platform-channel-handle=2280 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2752
- - 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=BE544F59A3C2A7895007C07843CAA41E --mojo-platform-channel-handle=1904 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2196
- - 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=B4404026619C9DC4A420AB1F40AB2999 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4508
- - 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=6C02E5C6DA146D60191C6FF555DD323E --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=6C02E5C6DA146D60191C6FF555DD323E --renderer-client-id=7 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5032

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1596

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

ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 64KB
SHA256 a5cf08c212871641753d9b68a92ddf77ba5f8b803d67ad9b34700afa9d52bb11
MD5 4c7b58a29cc7b59af3e472fee9738f82
SHA1 a9ba569b89b7f8c7ec2f7b94120431c9d3985660
SHA512 e920c42dc3634d08e8e1035342fae0138f1e754f504b9732719591ee47d8379f11209d15d2dc0898a214d2b8b7d21bfe1ce83b36004153361553f58898f80283
SSDEEP 384:yeidThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:5+elZsLQCZsL3hUS4
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 36KB
SHA256 b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
MD5 b30d3becc8731792523d599d949e63f5
SHA1 19350257e42d7aee17fb3bf139a9d3adb330fad4
SHA512 523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
SSDEEP 24:TLiXlzkrFsgIFsxX3pALXmnHpkDGjmcxBSkomXk+2m9RFTsyg+wmf9Mzm+Zs3tGl:TqlmFTIF3XmHjBoGGR+jMz+LhT
MD5 SHA1 SHA512 SSDEEP

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ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 56KB
SHA256 111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
MD5 752a1f26b18748311b691c7d8fc20633
SHA1 c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA512 a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5
SSDEEP 192:wedRBvVrThe4p4/KhTB4p4CitZtkZsLRGVDbw6H3ph+v3YQa9:weZdThkKhBvkZsLRGlzh+vS9
MD5 SHA1 SHA512 SSDEEP

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