ramnit | b3389a16488b7cc5c4b7c03af7be310a2eb04123a9504c49052385b11785e441

Analysis

max time kernel
14s
max time network
18s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
19/12/2024, 04:53

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General

Target

b3389a16488b7cc5c4b7c03af7be310a2eb04123a9504c49052385b11785e441N.dll
Size

176KB
MD5

3962976ddaff97bd02bd8b73bda55dc0
SHA1

3daffe6cb072deb37f9ac7ad459f6083a85ed684
SHA256

b3389a16488b7cc5c4b7c03af7be310a2eb04123a9504c49052385b11785e441
SHA512

cb81d335a6772fe8795a8ca59c234832f5cc1273091990a47d34d65c4dfea7c9f9cedcad8df5b04b10bdd7d62afbc0a9f5d3f1b634c15cb9ee478aa58da7dbb6
SSDEEP

3072:KLKa1Zln2E+HVpTbFVKTyDr6wjZuqhWcA69EShJEsyDdb2zSp0ecQnttCe9VfAi:wKa1f2jV+2rDIKe69EeJElwa0ebtkM3

Score

10^/10

ramnit banker discovery spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Ramnit family
ramnit

Executes dropped EXE 1 IoCs

pid	Process
3064	rundll32mgr.exe

Loads dropped DLL 4 IoCs

pid	Process
2124	rundll32.exe
2124	rundll32.exe
3064	rundll32mgr.exe
3064	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3064-10-0x0000000000400000-0x000000000042C1D8-memory.dmp	upx
behavioral1/memory/3064-13-0x0000000000400000-0x000000000042C1D8-memory.dmp	upx
behavioral1/memory/3064-17-0x0000000000400000-0x000000000042C1D8-memory.dmp	upx
behavioral1/memory/3064-19-0x0000000000400000-0x000000000042D000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 2124	2820	rundll32.exe	30
PID 2820 wrote to memory of 2124	2820	rundll32.exe	30
PID 2820 wrote to memory of 2124	2820	rundll32.exe	30
PID 2820 wrote to memory of 2124	2820	rundll32.exe	30
PID 2820 wrote to memory of 2124	2820	rundll32.exe	30
PID 2820 wrote to memory of 2124	2820	rundll32.exe	30
PID 2820 wrote to memory of 2124	2820	rundll32.exe	30
PID 2124 wrote to memory of 3064	2124	rundll32.exe	31
PID 2124 wrote to memory of 3064	2124	rundll32.exe	31
PID 2124 wrote to memory of 3064	2124	rundll32.exe	31
PID 2124 wrote to memory of 3064	2124	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3389a16488b7cc5c4b7c03af7be310a2eb04123a9504c49052385b11785e441N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3389a16488b7cc5c4b7c03af7be310a2eb04123a9504c49052385b11785e441N.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2124
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:3064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\~TMCA22.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TMCA90.tmp

Filesize
1.1MB

MD5
9b98d47916ead4f69ef51b56b0c2323c

SHA1
290a80b4ded0efc0fd00816f373fcea81a521330

SHA256
96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

SHA512
68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
97KB

MD5
ef5dc2521333fb418bd5518f1db3fd08

SHA1
3d5e8d6dbf09a599f674fe9d6c1d736b0c31cb70

SHA256
75bfc7c1f54f2579541c35f721a6bbd9083c7208bd989624ceb25f16bd03afbe

SHA512
8768e95f5539dc61350f552d575c683e20e000f41283701c9c5f393da40975a02a7d432374c72565f3e1848266ee94e20d905f62b849f91f3c956b7980d87882

Download Submit
memory/3064-8-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/3064-10-0x0000000000400000-0x000000000042C1D8-memory.dmp

Filesize
176KB

Download
memory/3064-13-0x0000000000400000-0x000000000042C1D8-memory.dmp

Filesize
176KB

Download
memory/3064-17-0x0000000000400000-0x000000000042C1D8-memory.dmp

Filesize
176KB

Download
memory/3064-19-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download