ramnit | 91e0a363c3c1d3238d3d0a5bdb3d752d83c97bd74c647a8c510608c569bbbbbc

General

Target

JaffaCakes118_6732633e1bc6d2e73502981ba32207c0.exe
Size

586KB
MD5

6732633e1bc6d2e73502981ba32207c0
SHA1

252c599f0bca8f21993715458379a5cdd6fb1739
SHA256

91e0a363c3c1d3238d3d0a5bdb3d752d83c97bd74c647a8c510608c569bbbbbc
SHA512

35abde196a6bb1add814c25a7b9c5aff6827d99672a1e3448b9d362033ea1322f54aa14bb4e0c788161e48c0a76cc2ec1d8767828d82473cc5696f0898888b65
SSDEEP

12288:EOAPiyNf63XC0MKXVHRZCX6RnyUtNLSaa5+2M6XfuBG:ErP5flhKFHrSSyU+aa5+2M6PL

Score

10^/10

ramnit banker bootkit discovery persistence 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

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	JaffaCakes118_6732633e1bc6d2e73502981ba32207c0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	JaffaCakes118_6732633e1bc6d2e73502981ba32207c0.exe

Executes dropped EXE 1 IoCs

pid	Process
2972	JaffaCakes118_6732633e1bc6d2e73502981ba32207c0mgr.exe

Loads dropped DLL 4 IoCs

pid	Process
1836	JaffaCakes118_6732633e1bc6d2e73502981ba32207c0.exe
1836	JaffaCakes118_6732633e1bc6d2e73502981ba32207c0.exe
2972	JaffaCakes118_6732633e1bc6d2e73502981ba32207c0mgr.exe
2972	JaffaCakes118_6732633e1bc6d2e73502981ba32207c0mgr.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	JaffaCakes118_6732633e1bc6d2e73502981ba32207c0.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2972-10-0x0000000000400000-0x000000000042A000-memory.dmp	upx
behavioral1/memory/2972-17-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2572	2972	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 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	JaffaCakes118_6732633e1bc6d2e73502981ba32207c0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6732633e1bc6d2e73502981ba32207c0mgr.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1836 wrote to memory of 2972	1836	JaffaCakes118_6732633e1bc6d2e73502981ba32207c0.exe	30
PID 1836 wrote to memory of 2972	1836	JaffaCakes118_6732633e1bc6d2e73502981ba32207c0.exe	30
PID 1836 wrote to memory of 2972	1836	JaffaCakes118_6732633e1bc6d2e73502981ba32207c0.exe	30
PID 1836 wrote to memory of 2972	1836	JaffaCakes118_6732633e1bc6d2e73502981ba32207c0.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6732633e1bc6d2e73502981ba32207c0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6732633e1bc6d2e73502981ba32207c0.exe"
1⤵
- Checks BIOS information in registry
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1836
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6732633e1bc6d2e73502981ba32207c0mgr.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6732633e1bc6d2e73502981ba32207c0mgr.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2972
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2972 -s 180
    3⤵
    - Program crash
    PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6732633e1bc6d2e73502981ba32207c0mgr.exe

Filesize
106KB

MD5
fe36fb1073e6f8fa14d7250501a29aaf

SHA1
6c7e01278362797dabcff3e666b68227cb9af10f

SHA256
f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

SHA512
8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

Download Submit
\Users\Admin\AppData\Local\Temp\~TMB99F.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TMB9BF.tmp

Filesize
1.1MB

MD5
9b98d47916ead4f69ef51b56b0c2323c

SHA1
290a80b4ded0efc0fd00816f373fcea81a521330

SHA256
96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

SHA512
68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

Download Submit
memory/1836-7-0x0000000000CB0000-0x0000000000D48000-memory.dmp

Filesize
608KB

Download
memory/2972-9-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2972-10-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2972-17-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads