ramnit | 8d820035b8e82fd369a13bdabcb5d89eae44e357749eda25d79093b88a2d360a

Analysis

max time kernel
24s
max time network
17s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 03:15

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General

Target

8d820035b8e82fd369a13bdabcb5d89eae44e357749eda25d79093b88a2d360aN.dll
Size

4.6MB
MD5

0b5aaa9eb2ceb917a096864aa7803420
SHA1

3da5f684788ebb55f4605d8342127d8bbdb6c3a9
SHA256

8d820035b8e82fd369a13bdabcb5d89eae44e357749eda25d79093b88a2d360a
SHA512

f45d36f4189a59a4cc7e621178a35a02f848d788fccba34a94db508e282a7c570034b501c16a5afcc7f1926328cc226b18bb3c9e734370503cbe696bd9d804f6
SSDEEP

49152:J9FV+oNBxTvOjP+leaI7ROSNM9LItKf+Pm9UMIJe7YHLk9z4OGLuFp7HGG0Gevyv:yqvOjPubI7R5G4m9UMIxQGsAdy

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
2980	regsvr32mgr.exe

Loads dropped DLL 4 IoCs

pid	Process
2816	regsvr32.exe
2816	regsvr32.exe
2980	regsvr32mgr.exe
2980	regsvr32mgr.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32mgr.exe	regsvr32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2980-11-0x0000000000400000-0x000000000042A000-memory.dmp	upx
behavioral1/memory/2980-18-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2900	2980	WerFault.exe	31

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	regsvr32mgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 2816	2944	regsvr32.exe	30
PID 2944 wrote to memory of 2816	2944	regsvr32.exe	30
PID 2944 wrote to memory of 2816	2944	regsvr32.exe	30
PID 2944 wrote to memory of 2816	2944	regsvr32.exe	30
PID 2944 wrote to memory of 2816	2944	regsvr32.exe	30
PID 2944 wrote to memory of 2816	2944	regsvr32.exe	30
PID 2944 wrote to memory of 2816	2944	regsvr32.exe	30
PID 2816 wrote to memory of 2980	2816	regsvr32.exe	31
PID 2816 wrote to memory of 2980	2816	regsvr32.exe	31
PID 2816 wrote to memory of 2980	2816	regsvr32.exe	31
PID 2816 wrote to memory of 2980	2816	regsvr32.exe	31

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8d820035b8e82fd369a13bdabcb5d89eae44e357749eda25d79093b88a2d360aN.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2944
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\8d820035b8e82fd369a13bdabcb5d89eae44e357749eda25d79093b88a2d360aN.dll
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2816
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2980
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2980 -s 180
      4⤵
      Program crash
      PID:2900

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

C:\Windows\SysWOW64\regsvr32mgr.exe

Filesize
106KB

MD5
fe36fb1073e6f8fa14d7250501a29aaf

SHA1
6c7e01278362797dabcff3e666b68227cb9af10f

SHA256
f34e5af97ccb3574f7d5343246138daf979bfd1f9c37590e9a41f6420ddb3bb6

SHA512
8584c008c5780352f634c37b7f46543a26280b57577b675f6e72185bfc1d95f771d210d799d704eceaba509ebfd2796fb43829495d5b2a568c741ad2d44f882f

Download Submit
\Users\Admin\AppData\Local\Temp\~TM6DC1.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TM6EEA.tmp

Filesize
1.1MB

MD5
9b98d47916ead4f69ef51b56b0c2323c

SHA1
290a80b4ded0efc0fd00816f373fcea81a521330

SHA256
96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

SHA512
68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

Download Submit
memory/2816-9-0x0000000073BE0000-0x0000000074160000-memory.dmp

Filesize
5.5MB

Download
memory/2980-11-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2980-10-0x0000000000220000-0x000000000024A000-memory.dmp

Filesize
168KB

Download
memory/2980-18-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download