icedid | c4275b08193c896015c7bcda2a4e0d940331b0806c6b32a68e32acbf78988075

General

Target

particulars 12.20.doc
Size

91KB
MD5

5ce909920e6006b358ebe30b37880aa4
SHA1

cbbbd2f5f1702853ca5b7cceae280d92b5d3d245
SHA256

c4275b08193c896015c7bcda2a4e0d940331b0806c6b32a68e32acbf78988075
SHA512

20254b6b3c8e1b878570fcb4f19dd526e44f4763254d0255d74101e45232c72a6c31e55b7c0f59aa17069eb2f8d78d15dc5d263a9a45a29c215642c51f51ea99

Score

10^/10

icedid banker trojan

Malware Config

Signatures

IcedID, BokBot
IcedID is a banking trojan capable of stealing credentials.
trojan banker icedid

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	4204	4768	rundll32.exe	WINWORD.EXE

Blocklisted process makes network request 7 IoCs

Processes:

mshta.exerundll32.exe

flow pid process

12 2796 mshta.exe
28 932 rundll32.exe
30 932 rundll32.exe
37 932 rundll32.exe
39 932 rundll32.exe
41 932 rundll32.exe
43 932 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

932 rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	pid	process
12	2796	mshta.exe
28	932	rundll32.exe
30	932	rundll32.exe
37	932	rundll32.exe
39	932	rundll32.exe
41	932	rundll32.exe
43	932	rundll32.exe

pid	process
932	rundll32.exe

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:

WINWORD.EXE

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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

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

Modifies registry class 1 IoCs

Processes:

rundll32.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings rundll32.exe
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4768 WINWORD.EXE
4768 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

932 rundll32.exe
932 rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings	rundll32.exe

pid	process
932	rundll32.exe
932	rundll32.exe

Suspicious use of SetWindowsHookEx 17 IoCs

Processes:

WINWORD.EXE

pid	process
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE
4768	WINWORD.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

WINWORD.EXErundll32.exemshta.exe

description	pid	process	target process
PID 4768 wrote to memory of 4204	4768	WINWORD.EXE	rundll32.exe
PID 4768 wrote to memory of 4204	4768	WINWORD.EXE	rundll32.exe
PID 4204 wrote to memory of 2796	4204	rundll32.exe	mshta.exe
PID 4204 wrote to memory of 2796	4204	rundll32.exe	mshta.exe
PID 4204 wrote to memory of 2796	4204	rundll32.exe	mshta.exe
PID 2796 wrote to memory of 932	2796	mshta.exe	rundll32.exe
PID 2796 wrote to memory of 932	2796	mshta.exe	rundll32.exe
PID 2796 wrote to memory of 932	2796	mshta.exe	rundll32.exe

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\particulars 12.20.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4768

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" url.dll,OpenURL c:\users\public\index.hta
2⤵
- Process spawned unexpected child process
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4204

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\index.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
3⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2796

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" c:\programdata\aMIlcj.pdf,ShowDialogA -r
4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:932

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

2

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\users\public\index.hta
MD5
b0d27e8940c06015cb528e8209bbfbf2

SHA1
e28b2ab72abcbf46f748df79b61c054999a541c1

SHA256
0aaa17b506c8a6d3a0fe5fa46636d95068cfe6784cacfc735281ce772d0651a2

SHA512
b19096cfcde7209362f70c6f035da86446e225e692fdf0609ed4c60ea9c7f1df9d4d0c04e6f8c941bcdbacef2e87f8b9e8e9e697f2980de27fe7297238f665f8

Download Submit
\??\c:\programdata\aMIlcj.pdf
MD5
cda9f24993945f32e0de0c00caa30447

SHA1
9681e080567a08f86e7aa50e5160d04727dc1041

SHA256
51eafaf365d2228a590c97013f4a0b89c0d925715a921523eaaaeedaba7447e9

SHA512
bcd636d4bdd2df741745bfaac43a3ba310855264ac40b592d9a320b7e26be023e0363b0d986970500d8f4d164e5dea7e29288e7356aa345c5a285c1343e34d72

Download Submit
\ProgramData\aMIlcj.pdf
MD5
cda9f24993945f32e0de0c00caa30447

SHA1
9681e080567a08f86e7aa50e5160d04727dc1041

SHA256
51eafaf365d2228a590c97013f4a0b89c0d925715a921523eaaaeedaba7447e9

SHA512
bcd636d4bdd2df741745bfaac43a3ba310855264ac40b592d9a320b7e26be023e0363b0d986970500d8f4d164e5dea7e29288e7356aa345c5a285c1343e34d72

Download Submit
memory/932-9-0x0000000000000000-mapping.dmp

Download
memory/2796-8-0x0000000000000000-mapping.dmp

Download
memory/4204-6-0x0000000000000000-mapping.dmp

Download
memory/4768-2-0x00007FFAEA620000-0x00007FFAEAC57000-memory.dmp

Filesize
6.2MB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads