dridex | 83386fb9fa084ea2de1f106d155a819b8090f95c28ed7a0f3c9756910bcedc5b

General

Target

Notification_71823.xls
Size

724KB
MD5

d65ddb3ade34504d44e72ba9db953916
SHA1

8bcccc3bce9568919160024dbc3144de359f2d5f
SHA256

83386fb9fa084ea2de1f106d155a819b8090f95c28ed7a0f3c9756910bcedc5b
SHA512

60d7a503c24c3b324c185f7010642e874271d759ff58fd0dcc7184683d6c1d3a2e322f19d26f04174ac14fe6a96f97f13fcfde16bd74ab72ed29d30ecb0d198d

Score

10^/10

dridex 111 botnet loader ransomware

Malware Config

Extracted

Family

dridex

Botnet

111

C2

52.73.70.149:443

8.4.9.152:3786

185.246.87.202:3098

50.116.111.64:5353

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.

Processes:

WMic.exe

description pid pid_target process target process

Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2732 4020 WMic.exe

description	pid	pid_target	process	target process
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2732	4020	WMic.exe

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/3936-8-0x0000000074410000-0x000000007442F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

WMic.exe

flow pid process

27 2732 WMic.exe
29 2732 WMic.exe
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

3936 rundll32.exe

flow	pid	process
27	2732	WMic.exe
29	2732	WMic.exe

pid	process
3936	rundll32.exe

JavaScript code in executable 2 IoCs

Processes:

resource	yara_rule
C:\Windows\Temp\4j9ko.dll	js
\Windows\Temp\4j9ko.dll	js

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
ransomware

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

WMic.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	WMic.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 5c000000010000000400000000080000090000000100000054000000305206082b0601050507030206082b06010505070303060a2b0601040182370a030406082b0601050507030406082b0601050507030606082b0601050507030706082b0601050507030106082b0601050507030853000000010000004300000030413022060c2b06010401b231010201050130123010060a2b0601040182373c0101030200c0301b060567810c010330123010060a2b0601040182373c0101030200c0620000000100000020000000d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef40b000000010000001c0000005300650063007400690067006f002000280041004100410029000000140000000100000014000000a0110a233e96f107ece2af29ef82a57fd030a4b41d00000001000000100000002e0d6875874a44c820912e85e964cfdb030000000100000014000000d1eb23a46d17d68fd92564c2f1f1601764d8e349200000000100000036040000308204323082031aa003020102020101300d06092a864886f70d0101050500307b310b3009060355040613024742311b301906035504080c1247726561746572204d616e636865737465723110300e06035504070c0753616c666f7264311a3018060355040a0c11436f6d6f646f204341204c696d697465643121301f06035504030c18414141204365727469666963617465205365727669636573301e170d3034303130313030303030305a170d3238313233313233353935395a307b310b3009060355040613024742311b301906035504080c1247726561746572204d616e636865737465723110300e06035504070c0753616c666f7264311a3018060355040a0c11436f6d6f646f204341204c696d697465643121301f06035504030c1841414120436572746966696361746520536572766963657330820122300d06092a864886f70d01010105000382010f003082010a0282010100be409df46ee1ea76871c4d45448ebe46c883069dc12afe181f8ee402faf3ab5d508a16310b9a06d0c57022cd492d5463ccb66e68460b53eacb4c24c0bc724eeaf115aef4549a120ac37ab23360e2da8955f32258f3dedccfef8386a28c944f9f68f29890468427c776bfe3cc352c8b5e07646582c048b0a891f9619f762050a891c766b5eb78620356f08a1a13ea31a31ea099fd38f6f62732586f07f56bb8fb142bafb7aaccd6635f738cda0599a838a8cb17783651ace99ef4783a8dcf0fd942e2980cab2f9f0e01deef9f9949f12ddfac744d1b98b547c5e529d1f99018c7629cbe83c7267b3e8a25c7c0dd9de6356810209d8fd8ded2c3849c0d5ee82fc90203010001a381c03081bd301d0603551d0e04160414a0110a233e96f107ece2af29ef82a57fd030a4b4300e0603551d0f0101ff040403020106300f0603551d130101ff040530030101ff307b0603551d1f047430723038a036a0348632687474703a2f2f63726c2e636f6d6f646f63612e636f6d2f414141436572746966696361746553657276696365732e63726c3036a034a0328630687474703a2f2f63726c2e636f6d6f646f2e6e65742f414141436572746966696361746553657276696365732e63726c300d06092a864886f70d010105050003820101000856fc02f09be8ffa4fad67bc64480ce4fc4c5f60058cca6b6bc1449680476e8e6ee5dec020f60d68d50184f264e01e3e6b0a5eebfbc745441bffdfc12b8c74f5af48960057f60b7054af3f6f1c2bfc4b97486b62d7d6bccd2f346dd2fc6e06ac3c334032c7d96dd5ac20ea70a99c1058bab0c2ff35c3acf6c37550987de53406c58effcb6ab656e04f61bdc3ce05a15c69ed9f15948302165036cece92173ec9b03a1e037ada015188ffaba02cea72ca910132cd4e50826ab229760f8905e74d4a29a53bdf2a968e0a26ec2d76cb1a30f9ebfeb68e756f2aef2e32b383a0981b56b85d7be2ded3f1ab7b263e2f5622c82d46a004150f139839f95e93696986e	WMic.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3812 EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 42 IoCs

Processes:

WMic.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2732	WMic.exe
Token: SeSecurityPrivilege	2732	WMic.exe
Token: SeTakeOwnershipPrivilege	2732	WMic.exe
Token: SeLoadDriverPrivilege	2732	WMic.exe
Token: SeSystemProfilePrivilege	2732	WMic.exe
Token: SeSystemtimePrivilege	2732	WMic.exe
Token: SeProfSingleProcessPrivilege	2732	WMic.exe
Token: SeIncBasePriorityPrivilege	2732	WMic.exe
Token: SeCreatePagefilePrivilege	2732	WMic.exe
Token: SeBackupPrivilege	2732	WMic.exe
Token: SeRestorePrivilege	2732	WMic.exe
Token: SeShutdownPrivilege	2732	WMic.exe
Token: SeDebugPrivilege	2732	WMic.exe
Token: SeSystemEnvironmentPrivilege	2732	WMic.exe
Token: SeRemoteShutdownPrivilege	2732	WMic.exe
Token: SeUndockPrivilege	2732	WMic.exe
Token: SeManageVolumePrivilege	2732	WMic.exe
Token: 33	2732	WMic.exe
Token: 34	2732	WMic.exe
Token: 35	2732	WMic.exe
Token: 36	2732	WMic.exe
Token: SeIncreaseQuotaPrivilege	2732	WMic.exe
Token: SeSecurityPrivilege	2732	WMic.exe
Token: SeTakeOwnershipPrivilege	2732	WMic.exe
Token: SeLoadDriverPrivilege	2732	WMic.exe
Token: SeSystemProfilePrivilege	2732	WMic.exe
Token: SeSystemtimePrivilege	2732	WMic.exe
Token: SeProfSingleProcessPrivilege	2732	WMic.exe
Token: SeIncBasePriorityPrivilege	2732	WMic.exe
Token: SeCreatePagefilePrivilege	2732	WMic.exe
Token: SeBackupPrivilege	2732	WMic.exe
Token: SeRestorePrivilege	2732	WMic.exe
Token: SeShutdownPrivilege	2732	WMic.exe
Token: SeDebugPrivilege	2732	WMic.exe
Token: SeSystemEnvironmentPrivilege	2732	WMic.exe
Token: SeRemoteShutdownPrivilege	2732	WMic.exe
Token: SeUndockPrivilege	2732	WMic.exe
Token: SeManageVolumePrivilege	2732	WMic.exe
Token: 33	2732	WMic.exe
Token: 34	2732	WMic.exe
Token: 35	2732	WMic.exe
Token: 36	2732	WMic.exe

Suspicious use of SetWindowsHookEx 15 IoCs

Processes:

EXCEL.EXE

pid	process
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

WMic.exerundll32.exe

description	pid	process	target process
PID 2732 wrote to memory of 3924	2732	WMic.exe	rundll32.exe
PID 2732 wrote to memory of 3924	2732	WMic.exe	rundll32.exe
PID 3924 wrote to memory of 3936	3924	rundll32.exe	rundll32.exe
PID 3924 wrote to memory of 3936	3924	rundll32.exe	rundll32.exe
PID 3924 wrote to memory of 3936	3924	rundll32.exe	rundll32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Notification_71823.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3812

C:\Windows\system32\wbem\WMic.exe
WMic
1⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2732

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:/Windows/Temp//4j9ko.dll InitHelperDll
2⤵
- Suspicious use of WriteProcessMemory
PID:3924

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:/Windows/Temp//4j9ko.dll InitHelperDll
3⤵
- Loads dropped DLL
PID:3936

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

1

T1130

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

2

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\27AB3.XsL
MD5
b8c3851e4878f935f84bc801ca898175

SHA1
e365adfa7081bd212b0a8824157761b68246d34a

SHA256
8dff64e9c4529d7c566fa4a707a6789c4a751d32cbb84cd1aadf9a7be163c701

SHA512
3e9b5420a07811320e8bcff80b3782f300f563edba5984dc026557f3355299d1aa321f2d56885d70afab116d9531503019dc03b280cf09d34fe1382771223393

Download Submit
C:\Windows\Temp\4j9ko.dll
MD5
84ff7ec307253e0994970afd2306c26b

SHA1
f68edd99bffbab07a4e943c722f6afac275361ef

SHA256
8e7da51571c18c184194f237241c304b1614ab21ca9624000c53ebfea4af7cc0

SHA512
e05571c396d1fcee575cdacbdc3451450da39f5ca78119c1a6bfaac0ca730de3fdd09663be55e735944dbfb3d02eeef3f57688194f12994e05d56d815c400be1

Download Submit
\Windows\Temp\4j9ko.dll
MD5
84ff7ec307253e0994970afd2306c26b

SHA1
f68edd99bffbab07a4e943c722f6afac275361ef

SHA256
8e7da51571c18c184194f237241c304b1614ab21ca9624000c53ebfea4af7cc0

SHA512
e05571c396d1fcee575cdacbdc3451450da39f5ca78119c1a6bfaac0ca730de3fdd09663be55e735944dbfb3d02eeef3f57688194f12994e05d56d815c400be1

Download Submit
memory/3812-2-0x00007FF98AD10000-0x00007FF98B347000-memory.dmp

Filesize
6.2MB

Download
memory/3812-9-0x00007FF61D860000-0x00007FF620E16000-memory.dmp

Filesize
53.7MB

Download
memory/3924-4-0x0000000000000000-mapping.dmp

Download
memory/3936-6-0x0000000000000000-mapping.dmp

Download
memory/3936-8-0x0000000074410000-0x000000007442F000-memory.dmp

Filesize
124KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads