d2c9bc09cd47c0373b8e4e1931e492e46b6a4a630f4dd9330e0ff75180c3d7a8

Analysis

max time kernel
41s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
25/11/2022, 20:03

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General

Target

d2c9bc09cd47c0373b8e4e1931e492e46b6a4a630f4dd9330e0ff75180c3d7a8.exe
Size

2.1MB
MD5

33f792f9b3732c0fcf94221334a74eb6
SHA1

bd5a048d08e7f5ce5ce54698b3ac9043b06f23fe
SHA256

d2c9bc09cd47c0373b8e4e1931e492e46b6a4a630f4dd9330e0ff75180c3d7a8
SHA512

c6632d9b848b05fce7c93dd330f3a4a410a65cbe2092c598448b1ce7516983fc0cd2655ac42816c11d202964119df1c63a4c444ec2795fccd1abe41f74eeeee5
SSDEEP

24576:h1OYdaOqzoi5Fm2qmA+L4zKWQt0moNdqNFSj8y0j9jtaJB5ZuUUr2YGnEQ/VfVP:h1Os4mLmVJWQt0mozqW78bSVfVP

Score

8^/10

adware discovery spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1292	wAs8L4TlJT5YvJe.exe

Loads dropped DLL 4 IoCs

pid	Process
1420	d2c9bc09cd47c0373b8e4e1931e492e46b6a4a630f4dd9330e0ff75180c3d7a8.exe
1292	wAs8L4TlJT5YvJe.exe
340	regsvr32.exe
1756	regsvr32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops Chrome extension 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\fhflhjmehjafaflaoogkkcdaipadfcco\2.0\manifest.json	wAs8L4TlJT5YvJe.exe
File created	C:\Users\Administrator\AppData\Local\Google\Chrome\User Data\Default\Extensions\fhflhjmehjafaflaoogkkcdaipadfcco\2.0\manifest.json	wAs8L4TlJT5YvJe.exe
File created	C:\Users\Guest\AppData\Local\Google\Chrome\User Data\Default\Extensions\fhflhjmehjafaflaoogkkcdaipadfcco\2.0\manifest.json	wAs8L4TlJT5YvJe.exe

Installs/modifies Browser Helper Object 2 TTPs 11 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{18DF081C-E8AD-4283-A596-FA578C2EBDC3}	wAs8L4TlJT5YvJe.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{72853161-30C5-4D22-B7F9-0BBC1D38A37E}	wAs8L4TlJT5YvJe.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{B4F3A835-0E21-4959-BA22-42B3008E02FF}	wAs8L4TlJT5YvJe.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\	wAs8L4TlJT5YvJe.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{72853161-30C5-4D22-B7F9-0BBC1D38A37E}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{B4F3A835-0E21-4959-BA22-42B3008E02FF}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{DBC80044-A445-435B-BC74-9C25C1C588A9}	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects	wAs8L4TlJT5YvJe.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{761497BB-D6F0-462C-B6EB-D4DAF1D92D43}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\	regsvr32.exe

Drops file in Program Files directory 8 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\GoSave\Chmfznc8LYxURn.dll	wAs8L4TlJT5YvJe.exe
File created	C:\Program Files (x86)\GoSave\Chmfznc8LYxURn.tlb	wAs8L4TlJT5YvJe.exe
File opened for modification	C:\Program Files (x86)\GoSave\Chmfznc8LYxURn.tlb	wAs8L4TlJT5YvJe.exe
File created	C:\Program Files (x86)\GoSave\Chmfznc8LYxURn.dat	wAs8L4TlJT5YvJe.exe
File opened for modification	C:\Program Files (x86)\GoSave\Chmfznc8LYxURn.dat	wAs8L4TlJT5YvJe.exe
File created	C:\Program Files (x86)\GoSave\Chmfznc8LYxURn.x64.dll	wAs8L4TlJT5YvJe.exe
File opened for modification	C:\Program Files (x86)\GoSave\Chmfznc8LYxURn.x64.dll	wAs8L4TlJT5YvJe.exe
File created	C:\Program Files (x86)\GoSave\Chmfznc8LYxURn.dll	wAs8L4TlJT5YvJe.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1292	wAs8L4TlJT5YvJe.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1420 wrote to memory of 1292	1420	d2c9bc09cd47c0373b8e4e1931e492e46b6a4a630f4dd9330e0ff75180c3d7a8.exe	28
PID 1420 wrote to memory of 1292	1420	d2c9bc09cd47c0373b8e4e1931e492e46b6a4a630f4dd9330e0ff75180c3d7a8.exe	28
PID 1420 wrote to memory of 1292	1420	d2c9bc09cd47c0373b8e4e1931e492e46b6a4a630f4dd9330e0ff75180c3d7a8.exe	28
PID 1420 wrote to memory of 1292	1420	d2c9bc09cd47c0373b8e4e1931e492e46b6a4a630f4dd9330e0ff75180c3d7a8.exe	28
PID 1292 wrote to memory of 340	1292	wAs8L4TlJT5YvJe.exe	29
PID 1292 wrote to memory of 340	1292	wAs8L4TlJT5YvJe.exe	29
PID 1292 wrote to memory of 340	1292	wAs8L4TlJT5YvJe.exe	29
PID 1292 wrote to memory of 340	1292	wAs8L4TlJT5YvJe.exe	29
PID 1292 wrote to memory of 340	1292	wAs8L4TlJT5YvJe.exe	29
PID 1292 wrote to memory of 340	1292	wAs8L4TlJT5YvJe.exe	29
PID 1292 wrote to memory of 340	1292	wAs8L4TlJT5YvJe.exe	29
PID 340 wrote to memory of 1756	340	regsvr32.exe	30
PID 340 wrote to memory of 1756	340	regsvr32.exe	30
PID 340 wrote to memory of 1756	340	regsvr32.exe	30
PID 340 wrote to memory of 1756	340	regsvr32.exe	30
PID 340 wrote to memory of 1756	340	regsvr32.exe	30
PID 340 wrote to memory of 1756	340	regsvr32.exe	30
PID 340 wrote to memory of 1756	340	regsvr32.exe	30

C:\Users\Admin\AppData\Local\Temp\d2c9bc09cd47c0373b8e4e1931e492e46b6a4a630f4dd9330e0ff75180c3d7a8.exe
"C:\Users\Admin\AppData\Local\Temp\d2c9bc09cd47c0373b8e4e1931e492e46b6a4a630f4dd9330e0ff75180c3d7a8.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1420
- C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\wAs8L4TlJT5YvJe.exe
  .\wAs8L4TlJT5YvJe.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops Chrome extension
  - Installs/modifies Browser Helper Object
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1292
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32.exe /s "C:\Program Files (x86)\GoSave\Chmfznc8LYxURn.x64.dll"
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:340
  - - C:\Windows\system32\regsvr32.exe
      /s "C:\Program Files (x86)\GoSave\Chmfznc8LYxURn.x64.dll"
      4⤵
      Loads dropped DLL
      Installs/modifies Browser Helper Object
      PID:1756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\GoSave\Chmfznc8LYxURn.dat

Filesize
5KB

MD5
09ff67c52d60afcbff3211f0ee59452c

SHA1
ff68bc847f6af6620a1e0f06a3cd95c3c6f61730

SHA256
3cfbe5b77ba89686b60a870adc67a4b176b241566ef8a5e2d16187ea64625d7f

SHA512
0a3219a908d99e231acf075027922a38aabccdd8075f8403ca07e9a0b893d96f15b73a5a6847d238bad5a506998fb51b5a78cf13a430cca7bd94db32d7f6207e

Download Submit
C:\Program Files (x86)\GoSave\Chmfznc8LYxURn.x64.dll

Filesize
711KB

MD5
8029d3733e6148ef569ae3fb2f27a205

SHA1
61b763a7ee5893f8a0a8e0a0c291453361c31702

SHA256
6cedfeedf3965d9c9f4a9abf117cde7021368f3dba113d5caddc888d2bc090d6

SHA512
535fd23dd28be5a7d99d9269f3344dbf3e47ff2f4c47778ff9db196ade92bdcb28efd8a463603b82332e5f7c6938eaabd2a3dae5258b5c61fa7fa283bc074456

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\Chmfznc8LYxURn.dll

Filesize
627KB

MD5
ef0e781558e928c2959189bfd10fb730

SHA1
48231fa33eeb062e3e610c442bd5065a2f452ca6

SHA256
b9e3d582ec3ff1cdb0bca396cfa19a66469a8b05576bf6af51b12d91b2b64586

SHA512
679f07f56c98c800336ed312672dde579c3c17c6ae78e5a3df1b160d872ce2234426bbc3f144a2c0336c1e95cc6de6da466b5f579229748a39b7a3a0e4a6e802

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\Chmfznc8LYxURn.tlb

Filesize
3KB

MD5
ca7a16e39808f225fbd1abd72fdf15b2

SHA1
a256de866b7b53a8124c487a496bfc5c31d83998

SHA256
b85b955b7f1a0de04289a427bc1fef945c9c203a1c5715b1fdd7b2703b424260

SHA512
b534df49d91f5e68961d3aecd44a0ef404244b7e7ff7bca5a9cb910f1de366272ba34a4a11bf4c691ee4d8f0f155a6f4f2b57781ecbea6cc4646d32907a1afcf

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\Chmfznc8LYxURn.x64.dll

Filesize
711KB

MD5
8029d3733e6148ef569ae3fb2f27a205

SHA1
61b763a7ee5893f8a0a8e0a0c291453361c31702

SHA256
6cedfeedf3965d9c9f4a9abf117cde7021368f3dba113d5caddc888d2bc090d6

SHA512
535fd23dd28be5a7d99d9269f3344dbf3e47ff2f4c47778ff9db196ade92bdcb28efd8a463603b82332e5f7c6938eaabd2a3dae5258b5c61fa7fa283bc074456

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\fhflhjmehjafaflaoogkkcdaipadfcco\background.html

Filesize
138B

MD5
6b80ce55441b27baca57bd6d618243c0

SHA1
44f05e6f84945e4aba53b08df8e347f35885395d

SHA256
11af5e17927527e0b163f6a6e85d359810af251873a36d18ccb61d9e618d1bd5

SHA512
3f9aa21cb51f18e81e381dca0c0e4d8163ff52aa4cc767a106587b421e19569717040c57a775f41010a043d2b9722ca00d5514b082e6e2101d0134c473b4c7c0

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\fhflhjmehjafaflaoogkkcdaipadfcco\content.js

Filesize
144B

MD5
fca19198fd8af21016a8b1dec7980002

SHA1
fd01a47d14004e17a625efe66cc46a06c786cf40

SHA256
332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

SHA512
60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\fhflhjmehjafaflaoogkkcdaipadfcco\l.js

Filesize
5KB

MD5
d41d5aa0b334a4aa5869baf7b5312670

SHA1
685e4ded560120d5d1a9935276308fd4e4dbecf3

SHA256
220c595d86e7f460d8b402cd66bda3b034dd7ef79acc2340cd45c0f0068ea211

SHA512
6c85e107acc52eea297e3dbdf66612f578681c769f933851b0ea71ec6b1a0ffcf32f8a1b8105e26dba922ff257d97c472a7067630d6a152044280add4a37f293

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\fhflhjmehjafaflaoogkkcdaipadfcco\lsdb.js

Filesize
531B

MD5
36d98318ab2b3b2585a30984db328afb

SHA1
f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

SHA256
ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

SHA512
6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\fhflhjmehjafaflaoogkkcdaipadfcco\manifest.json

Filesize
498B

MD5
640199ea4621e34510de919f6a54436f

SHA1
dc65dbfad02bd2688030bd56ca1cab85917a9937

SHA256
e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

SHA512
d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\[email protected]\bootstrap.js

Filesize
2KB

MD5
df13f711e20e9c80171846d4f2f7ae06

SHA1
56d29cda58427efe0e21d3880d39eb1b0ef60bee

SHA256
6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

SHA512
6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\[email protected]\chrome.manifest

Filesize
35B

MD5
e6a39b439e68a293bb1f3e86071285bb

SHA1
84ef9ccf06efe729ab46d574b0ed4cb31686938a

SHA256
2248eddb70ebf9822557e89647efa36da3ff3d6cf3a6393f3e2c58c848fd8630

SHA512
9010f786d93606272b6c5af496b285a0a0553245fdf63c0d291630b0657114f4540bebeb67845a47bb5d35f12a4a6c4fc7819eb70cb06dd27d72f78fabe80406

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\[email protected]\content\bg.js

Filesize
7KB

MD5
5fc0b7ffbcf1a6acafd8d84d9cf79393

SHA1
60086845736d2259db175eb66a00473a3fb3aee8

SHA256
e380ee124ba093d45d1d84452e6f0460578b94e7bc1da581bb03f65068f587bc

SHA512
67f974ed45867bb7474373751409fdfae9e7efafdbf8cd4e9e9c6aa15d03c2ab0e702753f3eb599af554e8405d32dc5507c76f692a1c2988c490abf388e51ac1

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\[email protected]\install.rdf

Filesize
595B

MD5
bb6a058bb3aabab0824a1b95d7f582a2

SHA1
5f732f894d5961ba6f44f3b567ad7b917c6fdba1

SHA256
ede76b956d01eb1e2ec9db8fc669999a1612ef847e3d2d1c7ff42b71dbfcd7cb

SHA512
300f9664351ebfe7bebb15283258eed332eec828bf4ca42b21330a21fd881a67f60a1d80e274cbdbe8bb5a6fc13811a726e3ba8c9bb2246229dc1f2217da40e7

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\wAs8L4TlJT5YvJe.dat

Filesize
5KB

MD5
09ff67c52d60afcbff3211f0ee59452c

SHA1
ff68bc847f6af6620a1e0f06a3cd95c3c6f61730

SHA256
3cfbe5b77ba89686b60a870adc67a4b176b241566ef8a5e2d16187ea64625d7f

SHA512
0a3219a908d99e231acf075027922a38aabccdd8075f8403ca07e9a0b893d96f15b73a5a6847d238bad5a506998fb51b5a78cf13a430cca7bd94db32d7f6207e

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\wAs8L4TlJT5YvJe.exe

Filesize
627KB

MD5
f172b0682fca8eb1e5c8dde6b837e387

SHA1
06561c1d33f425af65373cfd7752681edd356890

SHA256
ca605e3f7654066bb6023bdaba995345e78ff8e25b3c5948ade4e37b8c57500e

SHA512
0d5b3c18c412d9c4372b1e404ed2fe6b4a03a93cc8f21eae7b7596463d44cd8eec8dea8146c9727011063a8a31bc08b158604dedc9a728643330b08aaa9b6012

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\wAs8L4TlJT5YvJe.exe

Filesize
627KB

MD5
f172b0682fca8eb1e5c8dde6b837e387

SHA1
06561c1d33f425af65373cfd7752681edd356890

SHA256
ca605e3f7654066bb6023bdaba995345e78ff8e25b3c5948ade4e37b8c57500e

SHA512
0d5b3c18c412d9c4372b1e404ed2fe6b4a03a93cc8f21eae7b7596463d44cd8eec8dea8146c9727011063a8a31bc08b158604dedc9a728643330b08aaa9b6012

Download Submit
\Program Files (x86)\GoSave\Chmfznc8LYxURn.dll

Filesize
627KB

MD5
ef0e781558e928c2959189bfd10fb730

SHA1
48231fa33eeb062e3e610c442bd5065a2f452ca6

SHA256
b9e3d582ec3ff1cdb0bca396cfa19a66469a8b05576bf6af51b12d91b2b64586

SHA512
679f07f56c98c800336ed312672dde579c3c17c6ae78e5a3df1b160d872ce2234426bbc3f144a2c0336c1e95cc6de6da466b5f579229748a39b7a3a0e4a6e802

Download Submit
\Program Files (x86)\GoSave\Chmfznc8LYxURn.x64.dll

Filesize
711KB

MD5
8029d3733e6148ef569ae3fb2f27a205

SHA1
61b763a7ee5893f8a0a8e0a0c291453361c31702

SHA256
6cedfeedf3965d9c9f4a9abf117cde7021368f3dba113d5caddc888d2bc090d6

SHA512
535fd23dd28be5a7d99d9269f3344dbf3e47ff2f4c47778ff9db196ade92bdcb28efd8a463603b82332e5f7c6938eaabd2a3dae5258b5c61fa7fa283bc074456

Download Submit
\Program Files (x86)\GoSave\Chmfznc8LYxURn.x64.dll

Filesize
711KB

MD5
8029d3733e6148ef569ae3fb2f27a205

SHA1
61b763a7ee5893f8a0a8e0a0c291453361c31702

SHA256
6cedfeedf3965d9c9f4a9abf117cde7021368f3dba113d5caddc888d2bc090d6

SHA512
535fd23dd28be5a7d99d9269f3344dbf3e47ff2f4c47778ff9db196ade92bdcb28efd8a463603b82332e5f7c6938eaabd2a3dae5258b5c61fa7fa283bc074456

Download Submit
\Users\Admin\AppData\Local\Temp\7zSA97A.tmp\wAs8L4TlJT5YvJe.exe

Filesize
627KB

MD5
f172b0682fca8eb1e5c8dde6b837e387

SHA1
06561c1d33f425af65373cfd7752681edd356890

SHA256
ca605e3f7654066bb6023bdaba995345e78ff8e25b3c5948ade4e37b8c57500e

SHA512
0d5b3c18c412d9c4372b1e404ed2fe6b4a03a93cc8f21eae7b7596463d44cd8eec8dea8146c9727011063a8a31bc08b158604dedc9a728643330b08aaa9b6012

Download Submit
memory/1420-54-0x00000000762F1000-0x00000000762F3000-memory.dmp

Filesize
8KB

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memory/1756-78-0x000007FEFC421000-0x000007FEFC423000-memory.dmp

Filesize
8KB

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