417947f3a7839131efb296281c30bd57ce2533bf97ae35dfdaeeb49f7d8b1e8d

Analysis

max time kernel
142s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 11:20

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General

Target

a1bce520ca9d835b7757058505493c49.exe
Size

252KB
MD5

a1bce520ca9d835b7757058505493c49
SHA1

ac563570847617f7f68d1142c2b30c4455261c12
SHA256

417947f3a7839131efb296281c30bd57ce2533bf97ae35dfdaeeb49f7d8b1e8d
SHA512

fe9fc691a7dce53067556c173d9d599d86e882f90661e55e25aca08b92da64bdca51c84da4af9e4ba4bea66e2733e19eba9a89ba744626684fe91419a9b41494
SSDEEP

6144:VlzknoBcRzrWsJywvP6bQ7yMP+DE827OaFSEpAX:nAnZRzJT6b7MP+Dd2iafpAX

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\inf\ram32xp.dll	a1bce520ca9d835b7757058505493c49.exe
File created	C:\Windows\inf\ram65xp.dll	a1bce520ca9d835b7757058505493c49.exe

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-1-5-21-3316742141-2240921845-2885234760-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	a1bce520ca9d835b7757058505493c49.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	a1bce520ca9d835b7757058505493c49.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	a1bce520ca9d835b7757058505493c49.exe
Key created	\REGISTRY\USER\S-1-5-21-3316742141-2240921845-2885234760-1000_Classes\Local Settings	explorer.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe
3920	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1372 wrote to memory of 4544	1372	a1bce520ca9d835b7757058505493c49.exe	86
PID 1372 wrote to memory of 4544	1372	a1bce520ca9d835b7757058505493c49.exe	86
PID 1372 wrote to memory of 4544	1372	a1bce520ca9d835b7757058505493c49.exe	86
PID 2524 wrote to memory of 3920	2524	explorer.exe	90
PID 2524 wrote to memory of 3920	2524	explorer.exe	90
PID 2524 wrote to memory of 3920	2524	explorer.exe	90
PID 3920 wrote to memory of 1192	3920	AcroRd32.exe	93
PID 3920 wrote to memory of 1192	3920	AcroRd32.exe	93
PID 3920 wrote to memory of 1192	3920	AcroRd32.exe	93
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 4940	1192	RdrCEF.exe	95
PID 1192 wrote to memory of 1836	1192	RdrCEF.exe	97
PID 1192 wrote to memory of 1836	1192	RdrCEF.exe	97
PID 1192 wrote to memory of 1836	1192	RdrCEF.exe	97
PID 1192 wrote to memory of 1836	1192	RdrCEF.exe	97
PID 1192 wrote to memory of 1836	1192	RdrCEF.exe	97
PID 1192 wrote to memory of 1836	1192	RdrCEF.exe	97
PID 1192 wrote to memory of 1836	1192	RdrCEF.exe	97
PID 1192 wrote to memory of 1836	1192	RdrCEF.exe	97
PID 1192 wrote to memory of 1836	1192	RdrCEF.exe	97
PID 1192 wrote to memory of 1836	1192	RdrCEF.exe	97
PID 1192 wrote to memory of 1836	1192	RdrCEF.exe	97
PID 1192 wrote to memory of 1836	1192	RdrCEF.exe	97
PID 1192 wrote to memory of 1836	1192	RdrCEF.exe	97
PID 1192 wrote to memory of 1836	1192	RdrCEF.exe	97

C:\Users\Admin\AppData\Local\Temp\a1bce520ca9d835b7757058505493c49.exe
"C:\Users\Admin\AppData\Local\Temp\a1bce520ca9d835b7757058505493c49.exe"
1⤵
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1372
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe "c:\FINAL_TBF2.pdf"
  2⤵
  PID:4544

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\FINAL_TBF2.pdf"
  2⤵
  - Checks processor information in registry
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3920
- - 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
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1192
  - - 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=17B4DB7390D7CF75094AB4B56934CD93 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
      4⤵
      PID:4940
  - - 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=56CA5FBB6139068F2168F9D32FD9174C --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=56CA5FBB6139068F2168F9D32FD9174C --renderer-client-id=2 --mojo-platform-channel-handle=1784 --allow-no-sandbox-job /prefetch:1
      4⤵
      PID:1836
  - - 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=0A57D7AC9E03ACAAB45C5320E1441D9F --mojo-platform-channel-handle=2144 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
      4⤵
      PID:3220
  - - 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=A7CCA1047797D1326FA459ACB253EC75 --mojo-platform-channel-handle=1964 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
      4⤵
      PID:3108
  - - 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=39E1013B9B1A35A5CC306CB0A0722AE5 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
      4⤵
      PID:416

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2972

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
7583b5e523b8edd8dd833d423a2beb15

SHA1
a694cf7f2ce2e87bfc05d9a609d584078b5cf85f

SHA256
43b853f3e96569c74cf2b5982dda624d6e6abf8d9715e49d6b1deb65d649afaa

SHA512
1262ed558357e53c9ac7b2e8f530bc102d3b55f72f37f0e5b136e4cacc287264d4b05bda5e55abe173356eace455dedf66a29a12a7589b24f86a9081904abf17

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/1372-11-0x00000000023C0000-0x00000000023C1000-memory.dmp

Filesize
4KB

Download
memory/1372-14-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/1372-6-0x0000000002550000-0x0000000002551000-memory.dmp

Filesize
4KB

Download
memory/1372-7-0x0000000002520000-0x0000000002521000-memory.dmp

Filesize
4KB

Download
memory/1372-8-0x0000000002510000-0x0000000002511000-memory.dmp

Filesize
4KB

Download
memory/1372-9-0x00000000023F0000-0x00000000023F1000-memory.dmp

Filesize
4KB

Download
memory/1372-10-0x00000000023E0000-0x00000000023E1000-memory.dmp

Filesize
4KB

Download
memory/1372-0-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/1372-12-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download
memory/1372-4-0x00000000024F0000-0x00000000024F1000-memory.dmp

Filesize
4KB

Download
memory/1372-13-0x0000000002450000-0x0000000002451000-memory.dmp

Filesize
4KB

Download
memory/1372-15-0x0000000002400000-0x0000000002401000-memory.dmp

Filesize
4KB

Download
memory/1372-16-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/1372-17-0x0000000002210000-0x0000000002240000-memory.dmp

Filesize
192KB

Download
memory/1372-3-0x0000000000A40000-0x0000000000A47000-memory.dmp

Filesize
28KB

Download
memory/1372-2-0x0000000000A50000-0x0000000000A52000-memory.dmp

Filesize
8KB

Download
memory/1372-1-0x0000000002210000-0x0000000002240000-memory.dmp

Filesize
192KB

Download