e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631

General

Target

e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe
Size

2.6MB
MD5

c77259acc350a05bba0e11f619066d39
SHA1

fcb6d75d9baab1474cb1cd2596f12f3839d474a8
SHA256

e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631
SHA512

e83031593386eecdfe565b2b440603bec67d09d147d3b9b9a55246cec1459e543fcaed98191899ce374a7644448a6994d0961d27dc7d5a39866ba03772c8dbe8
SSDEEP

49152:poUMoaz4KJ0atpf0h3U8pL8ibXG/kw2/dLInk1my/rD6cniVF:p5a86pOU8pL8ibXK329IkQy/rD6cq

Score

8^/10

spyware stealer upx

Malware Config

Signatures

Downloads MZ/PE file

Executes dropped EXE 4 IoCs

pid	Process
4888	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe
4800	Assistant_110.0.5130.23_Setup.exe_sfx.exe
2512	assistant_installer.exe
4820	assistant_installer.exe

Loads dropped DLL 7 IoCs

pid	Process
1792	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe
4528	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe
4888	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe
2512	assistant_installer.exe
2512	assistant_installer.exe
4820	assistant_installer.exe
4820	assistant_installer.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
T1552.001

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1792-1-0x0000000000880000-0x0000000000D99000-memory.dmp	upx
behavioral2/memory/4528-5-0x0000000000880000-0x0000000000D99000-memory.dmp	upx
behavioral2/files/0x00070000000235f4-13.dat	upx
behavioral2/memory/4888-20-0x0000000000960000-0x0000000000E79000-memory.dmp	upx
behavioral2/memory/4888-18-0x0000000000960000-0x0000000000E79000-memory.dmp	upx
behavioral2/memory/1792-34-0x0000000000880000-0x0000000000D99000-memory.dmp	upx
behavioral2/memory/4528-51-0x0000000000880000-0x0000000000D99000-memory.dmp	upx

Enumerates connected drives 3 TTPs 2 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\F:	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe
File opened (read-only)	\??\D:	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1792	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 4528	1792	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe	89
PID 1792 wrote to memory of 4528	1792	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe	89
PID 1792 wrote to memory of 4528	1792	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe	89
PID 1792 wrote to memory of 4888	1792	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe	91
PID 1792 wrote to memory of 4888	1792	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe	91
PID 1792 wrote to memory of 4888	1792	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe	91
PID 1792 wrote to memory of 4800	1792	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe	93
PID 1792 wrote to memory of 4800	1792	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe	93
PID 1792 wrote to memory of 4800	1792	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe	93
PID 1792 wrote to memory of 2512	1792	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe	94
PID 1792 wrote to memory of 2512	1792	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe	94
PID 1792 wrote to memory of 2512	1792	e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe	94
PID 2512 wrote to memory of 4820	2512	assistant_installer.exe	95
PID 2512 wrote to memory of 4820	2512	assistant_installer.exe	95
PID 2512 wrote to memory of 4820	2512	assistant_installer.exe	95

C:\Users\Admin\AppData\Local\Temp\e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe
"C:\Users\Admin\AppData\Local\Temp\e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Modifies system certificate store
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Users\Admin\AppData\Local\Temp\e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe
  C:\Users\Admin\AppData\Local\Temp\e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=99.0.4788.31 --initial-client-data=0x2d8,0x2dc,0x2e0,0x2b4,0x2e4,0x755420d0,0x755420e0,0x755420ec
  2⤵
  - Loads dropped DLL
  PID:4528
- C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe
  "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe" --version
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:4888
- C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406120704531\assistant\Assistant_110.0.5130.23_Setup.exe_sfx.exe
  "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406120704531\assistant\Assistant_110.0.5130.23_Setup.exe_sfx.exe"
  2⤵
  - Executes dropped EXE
  PID:4800
- C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406120704531\assistant\assistant_installer.exe
  "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406120704531\assistant\assistant_installer.exe" --version
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2512
- - C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406120704531\assistant\assistant_installer.exe
    "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406120704531\assistant\assistant_installer.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=110.0.5130.23 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x2030e8,0x2030f4,0x203100
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:4820

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4224,i,3833046924978547022,12404847742964713612,262144 --variations-seed-version --mojo-platform-channel-handle=3960 /prefetch:8
1⤵
PID:1588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631.exe

Filesize
2.6MB

MD5
c77259acc350a05bba0e11f619066d39

SHA1
fcb6d75d9baab1474cb1cd2596f12f3839d474a8

SHA256
e89295bbc647aec6078034c71545d9ba40681064177ea59c5d70d90863870631

SHA512
e83031593386eecdfe565b2b440603bec67d09d147d3b9b9a55246cec1459e543fcaed98191899ce374a7644448a6994d0961d27dc7d5a39866ba03772c8dbe8

Download Submit
C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406120704531\assistant\Assistant_110.0.5130.23_Setup.exe_sfx.exe

Filesize
2.5MB

MD5
028fb19ee2cea3e611b4a85ac48fafbc

SHA1
d1a802b5df649282e896289b4ec5df8d512b53dd

SHA256
e8fa79e22926ae07a998b5d2bb1be9309d0a15772ac72b88f4eed66052f33117

SHA512
99959d7765c1e6636dee1841f214cb2d0c7684d7128381b0387fa9c7ef4a92ef62bb094087bdcb343e44196b5a333df3a2104ced9f49671197a06fafa27aff51

Download Submit
C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406120704531\assistant\assistant_installer.exe

Filesize
1.9MB

MD5
b6789061eb88781add48ec7095ff78e5

SHA1
c2cdf5723a94b3b5a69ad78a5e869347444abe0b

SHA256
c39c7199fa2221783ea61f085f484668e3c452706069b046cb0f4a9d4cb4c0a3

SHA512
7c9a61c7f8d45fb7a2591c0c57c22bca0b527e3b6b4a3bdde5fbdcca25abc1e0c56a244a39d4b65a91316eb8f19fb8232569f5781eedefbc0898646d4df10f9c

Download Submit
C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406120704531\assistant\dbgcore.dll

Filesize
166KB

MD5
a4ed3b36776e0155fd24ffa609ffc2f4

SHA1
3d6496f21e0f04b6789365d06e71fe7de284b1c0

SHA256
b69387b9284dc36d377e4066c4cf361dc65efc6c784af0f8666d9684fabd2d29

SHA512
ae5d052fdcc7e7d3e593a1fb2dd5e64fcd75c7381ff4e4c5f4302d8d3c058a48c943c66d04c02d44d45c2bda36b3d3df096dfea26fc35d3c682bdd5221225e76

Download Submit
C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202406120704531\assistant\dbghelp.dll

Filesize
1.7MB

MD5
fa64324149160877768551fd96c360dc

SHA1
dd76ebe617271465ae5820f49152f8a89703ae1a

SHA256
7f4a2cff90524b769781b763077be198d74834c6b576ef9f27132a415cbbaca8

SHA512
72161c1b0449f546e2a3560369f5cebbe71c5f098efb4037a9ec229310082b0fab2de10b8a0f94b0213d5119cd9ff66daeaa73ca2163ba0224b5cd8526f7bbea

Download Submit
C:\Users\Admin\AppData\Local\Temp\Opera_installer_2406120704533241792.dll

Filesize
4.4MB

MD5
5929d35f5dd25f951e3d67989df47554

SHA1
59fc6ede5facdf2e8c739bb2c3da626a35fbc658

SHA256
2c38bce7acbf817a52ef47da3ba3d21e93b0a141e05038ffeef9a77917c4e1d2

SHA512
16aa3cc00be95d280b438a6e82d512ec150cac05a33afd89d23fabf4bba741b0a225be6441422f0b5fcf6622183426612af315b50011e5efce757e1d3a64021d

Download Submit
C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports\settings.dat

Filesize
40B

MD5
d7afa143d7aeaabe8f269c6819fa102a

SHA1
0364fd91fe940b072290092e9888eaeb58d80023

SHA256
b1fb6c5e6490a362c330935488a30e69887b30ab81884d5295d4079218b13610

SHA512
fe39297ec299f3bc2e95b03485ed3cee0b4da78c59e7707b4e6f41a0297fba4d3e8395fcae4dc504236d555a96fd18d7ab14353167d350d0ab5606eb45f6a4c0

Download Submit
memory/1792-34-0x0000000000880000-0x0000000000D99000-memory.dmp

Filesize
5.1MB

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memory/1792-1-0x0000000000880000-0x0000000000D99000-memory.dmp

Filesize
5.1MB

Download
memory/4528-5-0x0000000000880000-0x0000000000D99000-memory.dmp

Filesize
5.1MB

Download
memory/4528-51-0x0000000000880000-0x0000000000D99000-memory.dmp

Filesize
5.1MB

Download
memory/4888-20-0x0000000000960000-0x0000000000E79000-memory.dmp

Filesize
5.1MB

Download
memory/4888-18-0x0000000000960000-0x0000000000E79000-memory.dmp

Filesize
5.1MB

Download
memory/4888-89-0x0000000000960000-0x0000000000E79000-memory.dmp

Filesize
5.1MB

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Analysis

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