qakbot | e3bd055c72e253d86dc95a25c64132f60d6fa87f7e94777993c240f423c7a884

General

Target

e3bd055c72e253d86dc95a25c64132f60d6fa87f7e94777993c240f423c7a884.dll
Size

1.8MB
MD5

3293dbd446a77c00bbd6088034d70b6c
SHA1

66410a5a2555787689aadaa426b22287c2d37f92
SHA256

e3bd055c72e253d86dc95a25c64132f60d6fa87f7e94777993c240f423c7a884
SHA512

d5b699360284f524747123d3cecd3054d61c27ebda7dcf4a95700bf7c12eaddcd590028bf18073ff2f1bb2830d0eb297ff15cbad0d6dcda9276907cca2966bc3

Score

10^/10

qakbot cullinan 1640170781 banker evasion stealer trojan

Malware Config

Extracted

Family

qakbot

Version

403.10

Botnet

cullinan

Campaign

1640170781

C2

14.96.108.245:61202

182.191.92.203:995

136.232.34.70:443

93.48.80.198:995

140.82.49.12:443

32.221.229.7:443

24.152.219.253:995

31.35.28.29:443

96.37.113.36:993

190.39.205.165:443

79.173.195.234:443

39.49.66.100:995

103.139.242.30:22

79.167.192.206:995

45.9.20.200:2211

24.95.61.62:443

37.210.226.125:61202

103.139.242.30:995

70.163.1.219:443

103.143.8.71:6881

Attributes

salt
jHxastDcds)oMc=jvh7wdUhxcsdt2

Signatures

Qakbot/Qbot
Qbot or Qakbot is a sophisticated worm with banking capabilities.
trojan banker stealer qakbot
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Loads dropped DLL 1 IoCs

Processes:

regsvr32.exe

pid process

1432 regsvr32.exe

pid	process
1432	regsvr32.exe

Drops file in System32 directory 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	ioc	process
File opened for modification	C:\Windows\System32\CatRoot2\dberr.txt	regsvr32.exe
File opened for modification	C:\Windows\System32\CatRoot2\dberr.txt	regsvr32.exe

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

996 schtasks.exe

pid	process
996	schtasks.exe

Modifies data under HKEY_USERS 10 IoCs

Processes:

explorer.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Inajlme\6a674b7a = 5ba93a807e64f4d8f23d2a3b0a5feac571527cf7f71c70721f72a9edec4f10d626c95cf0798e90c916a1d3cbda057dd5a5d55ec31c89f1fc56a22db7ff58cbfccd0a1b034b9daf0564c9b47ab6509fc7d9c79ada7866241800ba9c16c6b5e0119b30f19add7bff9171c6f37d5551	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Inajlme\afd36395 = a82bcfd222992e3d385c7691ad9937aa7393359f8c03edea2c01e3d18f1c455edc1b92b0f5722e64ad06efd7b634e0d955170a498665b689c0b668270c44458bb0ddc4a6660164e182d62e67a0fe22fdc4ec40e0a1a0cbf5c3af3febd7ce4de91b1cb1dcbc3bd9e9a637b3a88e	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Inajlme\176f04f0 = 1d98cb2f4d1ec5b5b42e8ecb2e6a6803163007ff	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Inajlme\d09a0c63 = 1d7b557ca3c943efa54ca03c2cc37f1cb038f006daa6bcaa60ec4d7da1dec431ade9d88a671d0eaaead620a9d4d8c147c712306c317554f2031f11c0572e335f01283c66f9	explorer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Inajlme	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Inajlme\5db9bb48 = 1aa28ad26ea9a43eecde58cd6e7a08ac971de855500b2cca17ecd28c	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Inajlme\22f0d4be = 7895e554e6f511f01da71390585c0c88ac191d7b8a6921835303d001239f7c45b4721b890443c96ce32561aa94ca15b996acd7aeeae1a583c273a778df620557336a002219e2fcfc9a1a916a6fe9664c69a230cc5ee955eaaa7c57dee88d430edd3b	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Inajlme\5db9bb48 = 1aa29dd26ea99146e7d28a32084cf6f69d4920db7fe86fa658daf6c86454c25b439a6524d6227ebd70eec01d3aaa9231bf	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Inajlme\68266b06 = c095377aebd41dc92553161a810bc21e56158eb408eed59a7485e66463d3a2e33c3ce12840c67b450900ed90a5f935e6109b3bac05148206eb7c8984b89c04b93f1684c32658d0568ae4ef78d2e6d42ad16adad8a6a5c1a776966f594b9e918bd963eed755260c57e23cb925cca3779212023345ff23cc8f36c3c175e95e6f4325b3a4cf63318740a5371560d5aa0525c77495ad8b6a11678cc53d92d764ca554be382ef9fdc3784f0487dd40a	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Inajlme\d2db2c1f = 6a98ac2d866d0950453139f11c7aeb4132e3dcafee34440a88fdb86fccda9c0db124da33a8a0d4934e28d18a011961e779de5b93a59735cc697217ad9dd13f81a9abba67	explorer.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

788 regsvr32.exe
1432 regsvr32.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid process

788 regsvr32.exe
1432 regsvr32.exe

Suspicious use of FindShellTrayWindow 40 IoCs

Processes:

regsvr32.exeregsvr32.exe

pid	process
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe
1432	regsvr32.exe

Suspicious use of SendNotifyMessage 20 IoCs

Processes:

regsvr32.exe

pid	process
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe
788	regsvr32.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

regsvr32.exeregsvr32.exeexplorer.exetaskeng.exeregsvr32.exeregsvr32.exeexplorer.exe

description	pid	process	target process
PID 736 wrote to memory of 788	736	regsvr32.exe	regsvr32.exe
PID 736 wrote to memory of 788	736	regsvr32.exe	regsvr32.exe
PID 736 wrote to memory of 788	736	regsvr32.exe	regsvr32.exe
PID 736 wrote to memory of 788	736	regsvr32.exe	regsvr32.exe
PID 736 wrote to memory of 788	736	regsvr32.exe	regsvr32.exe
PID 736 wrote to memory of 788	736	regsvr32.exe	regsvr32.exe
PID 736 wrote to memory of 788	736	regsvr32.exe	regsvr32.exe
PID 788 wrote to memory of 608	788	regsvr32.exe	explorer.exe
PID 788 wrote to memory of 608	788	regsvr32.exe	explorer.exe
PID 788 wrote to memory of 608	788	regsvr32.exe	explorer.exe
PID 788 wrote to memory of 608	788	regsvr32.exe	explorer.exe
PID 788 wrote to memory of 608	788	regsvr32.exe	explorer.exe
PID 788 wrote to memory of 608	788	regsvr32.exe	explorer.exe
PID 608 wrote to memory of 996	608	explorer.exe	schtasks.exe
PID 608 wrote to memory of 996	608	explorer.exe	schtasks.exe
PID 608 wrote to memory of 996	608	explorer.exe	schtasks.exe
PID 608 wrote to memory of 996	608	explorer.exe	schtasks.exe
PID 1524 wrote to memory of 1460	1524	taskeng.exe	regsvr32.exe
PID 1524 wrote to memory of 1460	1524	taskeng.exe	regsvr32.exe
PID 1524 wrote to memory of 1460	1524	taskeng.exe	regsvr32.exe
PID 1524 wrote to memory of 1460	1524	taskeng.exe	regsvr32.exe
PID 1524 wrote to memory of 1460	1524	taskeng.exe	regsvr32.exe
PID 1460 wrote to memory of 1432	1460	regsvr32.exe	regsvr32.exe
PID 1460 wrote to memory of 1432	1460	regsvr32.exe	regsvr32.exe
PID 1460 wrote to memory of 1432	1460	regsvr32.exe	regsvr32.exe
PID 1460 wrote to memory of 1432	1460	regsvr32.exe	regsvr32.exe
PID 1460 wrote to memory of 1432	1460	regsvr32.exe	regsvr32.exe
PID 1460 wrote to memory of 1432	1460	regsvr32.exe	regsvr32.exe
PID 1460 wrote to memory of 1432	1460	regsvr32.exe	regsvr32.exe
PID 1432 wrote to memory of 972	1432	regsvr32.exe	explorer.exe
PID 1432 wrote to memory of 972	1432	regsvr32.exe	explorer.exe
PID 1432 wrote to memory of 972	1432	regsvr32.exe	explorer.exe
PID 1432 wrote to memory of 972	1432	regsvr32.exe	explorer.exe
PID 1432 wrote to memory of 972	1432	regsvr32.exe	explorer.exe
PID 1432 wrote to memory of 972	1432	regsvr32.exe	explorer.exe
PID 972 wrote to memory of 1084	972	explorer.exe	reg.exe
PID 972 wrote to memory of 1084	972	explorer.exe	reg.exe
PID 972 wrote to memory of 1084	972	explorer.exe	reg.exe
PID 972 wrote to memory of 1084	972	explorer.exe	reg.exe
PID 972 wrote to memory of 1064	972	explorer.exe	reg.exe
PID 972 wrote to memory of 1064	972	explorer.exe	reg.exe
PID 972 wrote to memory of 1064	972	explorer.exe	reg.exe
PID 972 wrote to memory of 1064	972	explorer.exe	reg.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\e3bd055c72e253d86dc95a25c64132f60d6fa87f7e94777993c240f423c7a884.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:736

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\e3bd055c72e253d86dc95a25c64132f60d6fa87f7e94777993c240f423c7a884.dll
2⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:788

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
3⤵
- Suspicious use of WriteProcessMemory
PID:608

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn ahcsemolj /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\e3bd055c72e253d86dc95a25c64132f60d6fa87f7e94777993c240f423c7a884.dll\"" /SC ONCE /Z /ST 17:02 /ET 17:14
4⤵
- Creates scheduled task(s)
PID:996

C:\Windows\system32\taskeng.exe
taskeng.exe {8E47368A-F52D-4CFB-AF11-18C7A8CEDEC0} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1524

C:\Windows\system32\regsvr32.exe
regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\e3bd055c72e253d86dc95a25c64132f60d6fa87f7e94777993c240f423c7a884.dll"
2⤵
- Suspicious use of WriteProcessMemory
PID:1460

C:\Windows\SysWOW64\regsvr32.exe
-s "C:\Users\Admin\AppData\Local\Temp\e3bd055c72e253d86dc95a25c64132f60d6fa87f7e94777993c240f423c7a884.dll"
3⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1432

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
4⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:972

C:\Windows\system32\reg.exe
C:\Windows\system32\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /t REG_DWORD /v "C:\ProgramData\Microsoft\Yyaezxxkaxte" /d "0"
5⤵
PID:1084

C:\Windows\system32\reg.exe
C:\Windows\system32\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /t REG_DWORD /v "C:\Users\Admin\AppData\Roaming\Microsoft\Wzrrjwnoyj" /d "0"
5⤵
PID:1064

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Disabling Security Tools

1

T1089

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\e3bd055c72e253d86dc95a25c64132f60d6fa87f7e94777993c240f423c7a884.dll
MD5
3293dbd446a77c00bbd6088034d70b6c

SHA1
66410a5a2555787689aadaa426b22287c2d37f92

SHA256
e3bd055c72e253d86dc95a25c64132f60d6fa87f7e94777993c240f423c7a884

SHA512
d5b699360284f524747123d3cecd3054d61c27ebda7dcf4a95700bf7c12eaddcd590028bf18073ff2f1bb2830d0eb297ff15cbad0d6dcda9276907cca2966bc3

Download Submit
C:\Windows\System32\CatRoot2\dberr.txt
MD5
209e301456ae8132336e6d9164366b4e

SHA1
e4c72bcc0ec90804cfb90b1b6e406a73f4b42ce5

SHA256
4d5879dc35d043013b16cb2f973dd9d8d3b2077004c01caf594579db351c2104

SHA512
da0689eddd4cb8711ce42b1043b7a90d05a80ce9754758b6f992d4f7ee4b4924e1a6634b7b9a4db21e98685969838d71361d5d28e0582bc49edea3bd0c6cd48b

Download Submit
\??\PIPE\wkssvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\Users\Admin\AppData\Local\Temp\e3bd055c72e253d86dc95a25c64132f60d6fa87f7e94777993c240f423c7a884.dll
MD5
3293dbd446a77c00bbd6088034d70b6c

SHA1
66410a5a2555787689aadaa426b22287c2d37f92

SHA256
e3bd055c72e253d86dc95a25c64132f60d6fa87f7e94777993c240f423c7a884

SHA512
d5b699360284f524747123d3cecd3054d61c27ebda7dcf4a95700bf7c12eaddcd590028bf18073ff2f1bb2830d0eb297ff15cbad0d6dcda9276907cca2966bc3

Download Submit
memory/608-65-0x0000000000080000-0x00000000000A1000-memory.dmp

Filesize
132KB

Download
memory/608-60-0x00000000000B0000-0x00000000000B2000-memory.dmp

Filesize
8KB

Download
memory/608-61-0x0000000000000000-mapping.dmp

Download
memory/608-63-0x0000000074CA1000-0x0000000074CA3000-memory.dmp

Filesize
8KB

Download
memory/736-55-0x000007FEFC2A1000-0x000007FEFC2A3000-memory.dmp

Filesize
8KB

Download
memory/788-58-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/788-59-0x0000000010000000-0x00000000101DC000-memory.dmp

Filesize
1.9MB

Download
memory/788-57-0x0000000076B81000-0x0000000076B83000-memory.dmp

Filesize
8KB

Download
memory/788-56-0x0000000000000000-mapping.dmp

Download
memory/972-74-0x0000000000000000-mapping.dmp

Download
memory/972-80-0x0000000000080000-0x00000000000A1000-memory.dmp

Filesize
132KB

Download
memory/996-64-0x0000000000000000-mapping.dmp

Download
memory/1064-79-0x0000000000000000-mapping.dmp

Download
memory/1084-78-0x0000000000000000-mapping.dmp

Download
memory/1432-69-0x0000000000000000-mapping.dmp

Download
memory/1460-66-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads