a5896108e5554ba87999f3a7b73d74aebc62de7c3fa6d157aa6aba5e1d695256

Analysis

max time kernel
149s
max time network
163s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
12/03/2024, 16:18

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General

Target
NEW BANK LTR - ACH PAYERS.pdf
Size 231KB
Sample240312-tsfdssfd97
SHA256 a2f8c92e20989acf5cd35493cac78f94333fd9570c5d6eef6993efc33ee25064
MD5 939ccd858dec0f791e42a293916925e2
SHA1 a03cde63d2ebeba40e6280e30017ba34f53411ed
SHA512 94ebe455183d2410c20748441709e307b3c4f781c699ab53148f52a8121ac753813b083c2083abf3ad198befb0eec38ec8830d436c6a56969ab24d63f8999ba0
SSDEEP 6144:g9b8Cfv8qhOz3kZ5bROQNdCaVzb/lS+IEl7Mjdt9:CDZhO4ZxRbp1b/lS+Oj9
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-1-5-21-160263616-143223877-1356318919-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1360	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe
1360	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1360 wrote to memory of 4972	1360	AcroRd32.exe	81
PID 1360 wrote to memory of 4972	1360	AcroRd32.exe	81
PID 1360 wrote to memory of 4972	1360	AcroRd32.exe	81
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 4944	4972	RdrCEF.exe	82
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83
PID 4972 wrote to memory of 2428	4972	RdrCEF.exe	83

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\NEW BANK LTR - ACH PAYERS.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:1360
- 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:4972
- - 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=700F090B3CEEAC0E359793187430007E --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4944
- - 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=411DACF909E4B005DF2CD545B698D92B --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=411DACF909E4B005DF2CD545B698D92B --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2428
- - 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=29EB9A16F2275B2B87BDA1734AE65D64 --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=29EB9A16F2275B2B87BDA1734AE65D64 --renderer-client-id=4 --mojo-platform-channel-handle=2176 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4152
- - 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=5D41B4CCEE0F5B735B8A9F93D542BFF2 --mojo-platform-channel-handle=2440 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4708
- - 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=DA4AC5A83FFD73C5A6CD71DDEAAD1CD9 --mojo-platform-channel-handle=2052 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2784
- - 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=DF3F8EB4791B810A761F80BC1F2D11ED --mojo-platform-channel-handle=1944 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:460

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4596

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

ReaderMessages

Path C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages
Size 64KB
SHA256 2e65d876d0c05aaad74f3c1c868aaf58d6d957c839506cd34d7330f9a9aa4f16
MD5 3870d3222ce679e9f724d846c4e8fdd6
SHA1 93eb1f75ef54ecfd9458977d014595e40b137b08
SHA512 a3651b32b085bc83e1ea2c044f50771f49b8982c65ebbe51ec284a51109aa2a26976877f22c805960fe336eb04a2c68de95c2ae12fae7396c84ea89f8ac1ff06
SSDEEP 384:ye0dThatELJ8SWvDTGJCesZsLglKhubvGZsLRZh+vS4:H+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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memory/1360-137-0x000000000B8D0000-0x000000000BB7B000-memory.dmp

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